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1Back to top Go down   Idle increase when hot Empty Idle increase when hot Thu Oct 10, 2013 6:40 pm

RT

RT
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Here I am again trying to sort out my idling problem. I have done everything by the book (books), got it idling at just under 1,000 rpm but when I go for a ride and it warms up a bit more the revs jump to nearly 2,000 and stay there. Very annoyed at this point. Can anyone come up with a reason for this? Throttle doesn.t stick, new cable, new vacuum hose, airbox secured correctly, valve clearances and throttle body sync. Only thing I haven't done is replace throttle body throat rubbers but they seem fine.
"Choke" cable idle gaps as per specs. Sad 
Thanks RT


__________________________________________________
2011 R1200RT
    

2Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Thu Oct 10, 2013 7:50 pm

japuentes

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Hi there, I don't know the reason, but I've noticed that is related to the set-point of the air bypass screw at the MAF.
When it is properly adjusted, and the engine is tuned up, the idle´s hot increase is almost unnoticeable.
Hope this help.
Best regards

JAP


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Idle increase when hot 2854237993 1988 K100RS SE/ABS
    

3Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Thu Oct 10, 2013 8:25 pm

Guest

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Adjust the thottle settings at operating temp not cold/warm, and see what happens.

Also, the RBike I have uses the same injection system and similar throttle bodies to the KBike except the throttle bodies are a lot bigger. It uses the BigBrassScrews to adjust sync at idle and to set idle speed. It then uses the throttle cables to adjust sync at revs (3K RPM). I'm guessing if you can't get idle speed right when it's hot then use the BigBrassScrews to reduce idle speed. Screwing them in should reduce idle speed so maybe screw them all in 1/4 to 1/2 turn and see what it's like.

But the bike should be at operating temp. You can point a pedestal fan at the radiator if your taking too long and the bikes fan is coming on.

All that said, this RBike idles at 2K RPM as one throttle body is worn and leaking air so that's where it wants to be to achieve sync, at least until the rebuild kit arrives.

    

4Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Fri Oct 11, 2013 3:38 am

charlie99

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@japuentes wrote:Hi there, I don't know the reason, but I've noticed that is related to the set-point of the air bypass screw at the MAF.
When it is properly adjusted, and the engine is tuned up, the idle´s hot increase is almost unnoticeable.
Hope this help.
Best regards

JAP
+ 1 jap ....

bob you might have to open that grommet on top of the air box and wind the set screw (5mm)  a bit ...
there is a few posts on the old  lists for this

good luck mate


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

5Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Fri Oct 11, 2013 5:15 am

Guest

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Yep ignore me, the rbikes have the same setup as 16v kbikes not 8v.

    

6Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sat Oct 12, 2013 5:54 am

walfish

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Here's a manual method of setting L-Jetronic K bike fuel injection CO (carbon monoxide) mixture
without the need for an exhuast gas analyzer:
1. Thoroughly warm the engine.
2. Remove the rubber plug from the top right corner of the air box, above the engine. Using a 5mm
allen, adjust the air flow meter idle air bypass screw under the plug for highest attainable idle
speed. This should be about 1-2 turns out from the fully-seated position CW.
3. Using a Carb Stix mercury manometer or vacuum gages, reset the butterfly bypass screws to
resynchronize and establish an idle of 1050 rpm, or about one tach needle width above 1000 rpm.
4. Now turn the idle air bypass screw CCW (from the top) until rpm is lowered by 50 rpm to 1000,
about 4-5 total turns out. (This is called the lean drop method of setting CO, if you don't have an
exhaust analyzer.)
If you live above 4000 ft elevation, be sure to install the high altitude compensating plug into the
harness. There's a receptacle taped to the frame on the left under the side panel.
As a final check, you know you have done it all correctly when:
1. You press the starter button with the engine running and the rpm stays the same or slightly
increases (enriching signal to the computer).
2. You pull out the high altitude plug and the rpm also increases (again, enrichening signal to the
computer, but less so than the starter. You've set it lean, so enrichening will increase rpm).
Don't forget to reinstall the rubber plug. I've also assumed you've got a 2 valve K with L-Jetronic
injection. Motronic works differently. Have fun!


This is how Rob Lentini went about it


__________________________________________________
Idle increase when hot Uk-log10 88 K 100  0033026 
   
                            92 K 1100 LT  6455097
    

7Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sat Oct 12, 2013 6:03 am

k-rider

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i¨ve used this method , and it idles smoother than ever Cool 
ungaas wrote:Here's a manual method of setting L-Jetronic K bike fuel injection CO (carbon monoxide) mixture
without the need for an exhuast gas analyzer:
1. Thoroughly warm the engine.
2. Remove the rubber plug from the top right corner of the air box, above the engine. Using a 5mm
allen, adjust the air flow meter idle air bypass screw under the plug for highest attainable idle
speed. This should be about 1-2 turns out from the fully-seated position CW.
3. Using a Carb Stix mercury manometer or vacuum gages, reset the butterfly bypass screws to
resynchronize and establish an idle of 1050 rpm, or about one tach needle width above 1000 rpm.
4. Now turn the idle air bypass screw CCW (from the top) until rpm is lowered by 50 rpm to 1000,
about 4-5 total turns out. (This is called the lean drop method of setting CO, if you don't have an
exhaust analyzer.)
If you live above 4000 ft elevation, be sure to install the high altitude compensating plug into the
harness. There's a receptacle taped to the frame on the left under the side panel.
As a final check, you know you have done it all correctly when:
1. You press the starter button with the engine running and the rpm stays the same or slightly
increases (enriching signal to the computer).
2. You pull out the high altitude plug and the rpm also increases (again, enrichening signal to the
computer, but less so than the starter. You've set it lean, so enrichening will increase rpm).
Don't forget to reinstall the rubber plug. I've also assumed you've got a 2 valve K with L-Jetronic
injection. Motronic works differently. Have fun!


This is how Rob Lentini went about it


8Back to top Go down   Idle increase when hot Empty Idle increase when hot Sat Oct 12, 2013 6:13 pm

RT

RT
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Thanks for that everyone, I'll have a go at it. Been too hot for a ride anyway even at 800 metres here.
Looks a bit tricky for me but can only stuff it jup.
Cheers.


__________________________________________________
2011 R1200RT
    

9Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sat Oct 12, 2013 6:49 pm

Inge K.

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Also check that it isn't the TPS that prevents the full throttle return.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

10Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sat Oct 12, 2013 8:21 pm

charlie99

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+1 Idle increase when hot 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

11Back to top Go down   Idle increase when hot Empty Idle increase when hot Sun Oct 13, 2013 6:27 pm

RT

RT
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Yes that was my hope, I removed the TPS and jiggled the arm but couldn't get anymore movement. It seems to me that there is something stopping the idle screw connection(spring and rotating disc thing) from coming all the way down. If I push a bit on the idle screw the idle decreases to normal, but winding out the actual screw still won't let the whole assembly drop down. I'm going to clean everything in there and hope I can find the answer easily. It always has idled a bit high but since I put in the new cable I cannot seem to get it right. Thanks for looking.



Last edited by RT on Sun Oct 13, 2013 6:29 pm; edited 1 time in total (Reason for editing : Added bits)


__________________________________________________
2011 R1200RT
    

12Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sun Oct 13, 2013 8:18 pm

RicK G

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Have you backes off the adjustment on the throttle cable RT sounds to me like it is just too tight and holding them open a slight amount.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

13Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sun Oct 13, 2013 9:08 pm

rosskko

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@RT wrote:Yes that was my hope, I removed the TPS and jiggled the arm but couldn't get anymore movement. It seems to me that there is something stopping the idle screw connection(spring and rotating disc thing) from coming all the way down. If I push a bit on the idle screw the idle decreases to normal, but winding out the actual screw still won't let the whole assembly drop down.
Mine is the same RT. There is a few mm gap between the screw and the rest at the bottom. I can push it down and lower the revs but as soon s I accelerate it stays at the higher position.
Like that on both bikes.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

14Back to top Go down   Idle increase when hot Empty Idle increase when hot Sun Oct 13, 2013 11:47 pm

RT

RT
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Hi Rick, I must admit to having trouble adjusting the new cable , think I need a younger set of eyes on the screw as I move it. Could well be the culprit.
Hey Rossko, if it was only 1,200odd revs I could live with it but it's racing and November is aproaching and Putty road is calling and the temp will be hot and the road will have trucks and , well you all know what a panic merchant I am.
Trying to get time here as well, new puppy again, no sleep. Well not for me anyway.
Idle increase when hot Pa110010


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2011 R1200RT
    

15Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Oct 14, 2013 1:27 am

walfish

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Check your choke adjustment, if set incorrectly will keep the revs high, The first indent on the choke should lift the adjustment screw approx. 1,5 mm. 
Idle increase when hot 22936


__________________________________________________
Idle increase when hot Uk-log10 88 K 100  0033026 
   
                            92 K 1100 LT  6455097
    

16Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Oct 14, 2013 1:36 am

RicK G

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@RT wrote:Hi Rick, I must admit to having trouble adjusting the new cable , think I need a younger set of eyes on the screw as I move it. Could well be the culprit.
Hey Rossko, if it was only 1,200odd revs I could live with it but it's racing and November is aproaching and Putty road is calling and the temp will be hot and the road will have trucks and , well you all know what a panic merchant I am.
Trying to get time here as well, new puppy again, no sleep. Well not for me anyway.
You need Halo to come and give him a cuddle.
The throttle adjustment is done at the top end of the cable where the cable exits the master cylinder/switch block.
Where the cable goes in there is a conical rubber boot about 30mm long, if you pull that boot back down the cable the adjuster will be revealed and you will need 2 10mm spanners to unlock the adjuster then you can see how it will screw in to shorten the outer cable and let the throttle settle back to the stop.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

17Back to top Go down   Idle increase when hot Empty Idle increase when hot Mon Oct 14, 2013 4:24 am

RT

RT
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Ok got that, found a slight problem.
Idle increase when hot Pa130010
I don't suppose anyone can see what the problem is here. I really must get my glasses checked.
Now that I fixed this little one, the idle has set itself at 1,500 steady so I can get on to the adjustments.Idle increase when hot 8157


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2011 R1200RT
    

18Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Oct 14, 2013 4:27 am

charlie99

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nearly fell off me chair bob ...! 
a marvellous find ol mate

cheers

to be honest those bypass screws look to be too far out also


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

19Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Oct 14, 2013 4:37 am

rosskko

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Where else would you put your rubber knob while working on the bike?

Thinking about it, a lot of what has been suggested will not fix an idle that gets higher as the bike warms up. Maybe you got it.

I got shares in OPSM. Send them a thank you.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

20Back to top Go down   Idle increase when hot Empty Idle increase when hot Mon Oct 14, 2013 4:52 am

RT

RT
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Hey Charlie, I set those screws using a man o man ometre, the readings were low, like 20 but all the same. When Waz did his they were around 42 odd, does that mean I should  do it again and wind em in all together?.

Ross, I had to go and check the other 2 old bikes to see how many vacuum holes there were and why I had an extra one. Took me about 20 minutes to realise what I'd done. Wasn't going to mention it but hey, I'm not absolutely flawless. (no correspondence entered into on that one).

Now I.m off to ring the dude with the 1100, if it idles well, I'll be trying for it.


__________________________________________________
2011 R1200RT
    

21Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Oct 14, 2013 5:03 am

charlie99

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im sure you got em matched bob

but as you say a bit low on the overall vacume reading 
I recon you could wind them all in a bit .... till you get about 500-600  revs ...then advance that idle screw down a touch so it touches the idle bar at least  to maintain that rev range  ..then do your adjustment ...you should get something like 23- 24 on the vacume reading right across ...it will probably come up a bit in revs as you do the adjustment ....I would be happy if you got  800 round abouts ...then turn the idle screw just a tweek to sit at 900 when warm

 the recommended  and often just right setting is about 1.5 turns out from being closed (fully wound in )
 
 just cleaned up a set of needle valves on my tbs ...you should have seen the gunk that came off them ..had to get a little 1200 wet and dry to make em shiny and not pitted with the residue that collected over the years



Last edited by charlie99 on Mon Oct 14, 2013 5:09 am; edited 1 time in total


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

22Back to top Go down   Idle increase when hot Empty Idle increase when hot Mon Oct 14, 2013 5:08 am

RT

RT
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Thanks Charlie, maybe get on it tomorrow.
I won't be inside the T/B for some time yet, not game. But am getting a bit better with you guys behind me.


__________________________________________________
2011 R1200RT
    

23Back to top Go down   Idle increase when hot Empty Idle increase when hot -solved Sat Oct 19, 2013 6:45 pm

RT

RT
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Well I have some better news, I followed Charlies instructions and seem to have a steady idle of about 1,000rpm, even after a warm run so I'll go with this for a while. Still have a sneaky suspicion that there might be a leaky throttle body rubber in there, but Hey, I can get out and ride again. (in fact I can't cause there is fire all around me, dang.)
Thanks heaps.
RT


__________________________________________________
2011 R1200RT
    

24Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sun Oct 20, 2013 4:30 am

charlie99

charlie99
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wow ...nice news bob ...

see ....you can do anything ol mate


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

25Back to top Go down   Idle increase when hot Empty Idle increase when hot Sun Oct 20, 2013 6:40 pm

RT

RT
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It never ends Charlie, as I had the bike up on the lifter I notived a bubble and wet patch on the tank bottom edge. GGrrrr. Anyway patched it yesterday with a Permatex metal tank kit ( I have a spare plastic tank kit here now, didn't have my glasses so if anyone wants a plastic tank repair kit, drop me a line).

Now I see that Throttle body top rubber no.4 is damp and dirty looking, better find that particular thread and get on with things.
Cheers


__________________________________________________
2011 R1200RT
    

26Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sun Oct 20, 2013 6:53 pm

Comberjohn

Comberjohn
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Ref the blanking rubber on the adjuster.
Thank goodness someone else besides me has done that!Idle increase when hot Icon_redface
Anyone else want to 'fess up?


__________________________________________________
Life is not a rehearsal.
2010 VFR 1200F DCT 
2010 R1200GS(gone)
1986 K100 Silver(gone)
2012 K1600GT(gone)
1984 K100RT Madison Silver(gone)
1989 K100LT Stratus Grey(gone)
1984 K100 Red(gone)
http://www.johnsdrivingschool.co
    

27Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Sun Oct 20, 2013 8:40 pm

RicK G

RicK G
admin
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I haven't done that one but many others that I aint gonna tell about. Well not till next time round the campfire telling tall tales.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

28Back to top Go down   Idle increase when hot Empty Idle increase when hot Wed Dec 18, 2013 6:51 am

RT

RT
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More on this irksome problem for me. Cannot get any reaction from spraying carb cleaner around throttle bodies,
have cleaned out underneath the air adjuster screws (tks Charlie) and rebalanced the throttles still cannot get the revs down at idle when warm.

The latest test was to remove the oil filler cap whilst idling, and the revs dropped off considerably. As I can't ride around with this off, any ideas what this might be pointing towards?


__________________________________________________
2011 R1200RT
    

29Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Wed Dec 18, 2013 7:13 am

RicK G

RicK G
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Usually if an engine is getting runaway at idle the mixture is way too lean and letting the air through the oil filler is bringing it back down. This is so for carby engines but not sure if it applies to FI as well
I have never fiddled with this but there is an Idle air adjustment on the MAF sensor to regulate the air it lets through without the flap opening, Have you tried adjusting it.
I have a book here on the LE Jetronic injection by Bosch. It's in PDF so I can email a copy if you want one.

Usual disclaimers apply!


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

30Back to top Go down   Idle increase when hot Empty Idle increase when hot Wed Dec 18, 2013 5:39 pm

RT

RT
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Thanks Rick I'd appreciate that. I've read Charlie's write up about that, looked tricky for me but I'm running out of options. I'll PM the email address thanks.


__________________________________________________
2011 R1200RT
    

31Back to top Go down   Idle increase when hot Empty Idle increase when hot Tue Feb 25, 2014 4:55 am

RT

RT
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Another episode of war and peace.
I found a crack in the vacuum hose from plenum to crankcase and replaced it( had renewed it 2 years ago), thought that might be the prob , then noticed that No.4 injector was wet all around the top. This was after removing the plenum to check the T/B rubbers (all good).
Replaced injector, but do you think I can get the Plenum back on ( I have all the rubbers attached and need to slip them over the T/B bodies). 
Anyone have any tips for me, airbox is totally off so have good access just cannot get the fx88ng thing back on.
I'm off for a beer.


__________________________________________________
2011 R1200RT
    

32Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Feb 25, 2014 6:29 am

charlie99

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aw poor man bob

have you tried dishwashing liquid  with a bit of water around the top of the rubbers ?

the soap suds dry out leaving a good seal as well as being slippery to push the plenum back on ???


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

33Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Feb 25, 2014 7:37 am

ReneZ

ReneZ
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I'm with Charlie :-) bit of soap will work best. Then slowly rock it in from the right side of the bike.


__________________________________________________
Greetings from Florida! Having a 'new' K  :cyclops:    Surprised-o: 

Rene


BMW K100 - 1985 (0030029) Idle increase when hot Rain
BMW K1200GT - 2003 (ZK01223)
    

34Back to top Go down   Idle increase when hot Empty Idle increase when hot Tue Feb 25, 2014 5:58 pm

RT

RT
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Soap it will be then thanks. And as usual when working intimately with these machines, I found a small oil drip
out of that secret hole underneath the gearbox/crank join. AAAAAAAAAAAAAAAAAAAArgh. All I want to do is go for a ride.


__________________________________________________
2011 R1200RT
    

35Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Feb 25, 2014 6:03 pm

rosskko

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@RT wrote: I found a small oil drip out of that secret hole underneath the gearbox/crank join. AAAAAAAAAAAAAAAAAAAArgh. All I want to do is go for a ride.

Hey RT,
I don't want to invite myself to stay at your place, but I would like to invite myself to stay at your place.

Seems I have a secret hole also. And a drip.

How about we order a couple of rear seals and spend a weekend fixing both bikes.
We can both learn something new.

I will bring the scones.

Or we could just plug the secret hole affraid 


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

36Back to top Go down   Idle increase when hot Empty Idle increase when hot Tue Feb 25, 2014 7:06 pm

RT

RT
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You know, I though about just sealing that hole,  but eventually I would pay for it.
What a great idea, I want to change my final drive and lube the output shaft, take off the swing arm and do it properly so that would be a start. (did that once a few years ago and renewed the bearings so cool with that part).

Most welcome Rossckoe, do yu mind getting all the seals?, I'll handsomely re imburse you, just want to make sure I have all the right bits before I get that far into the gizzards.

You can kip down in the mother in laws digs, she has a king single, and it'll probably be cold.

P.S it was a bumper jam season here, so I'll have a choice for you, Blackberry Plum or Fig. (I'm guessing FIG).



Last edited by RT on Tue Feb 25, 2014 7:08 pm; edited 1 time in total (Reason for editing : Mental deterioration)


__________________________________________________
2011 R1200RT
    

37Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Feb 25, 2014 8:05 pm

rosskko

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@RT wrote:P.S it was a bumper jam season here, so I'll have a choice for you, Blackberry Plum or Fig. (I'm guessing FIG).

FIGJAM  cheers 


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

38Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Feb 25, 2014 10:35 pm

Waz

Waz
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I might head over for the day and clean parts for you blokes. I would like to see how it's done.

    

39Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Wed Feb 26, 2014 3:40 am

charlie99

charlie99
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onya waz .... Idle increase when hot 112350


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

40Back to top Go down   Idle increase when hot Empty Idle increase when hot Wed Feb 26, 2014 6:43 am

RT

RT
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Seeing how half of Waz's workshop is in my tool chest at the moment that would be a good idea to come and conduct an audit.
Some good news here, I managed to get the plenum back on (rubbers upside down did not help),connected everything back up and she fired up first go. Need to go for a run and whack Waz's manometer on again to see if anything has changed, except that the weather has turned wet and cool.
Many thanks to all who chipped in, it helps to have the force with you when  faced with the BMW death star.


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2011 R1200RT
    

41Back to top Go down   Idle increase when hot Empty Idle increase when hot Fri Jul 04, 2014 4:43 am

RT

RT
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I might be getting somewhere at last with this problem. Gave full fairing on at moment so a bit hard to look at properly, but I sprayed carby cleaner where I could around T/Bs and found bubbles underneath the bottom rubber where it rests on the head. I guess the rubber is stuffed probably on all although No.4 has been my biggest problem to now.
 So my question now is, should I bite the bullet and order new rubbers, or can they have a sealing gasket
put in underneath. I understood there was a paperesque gasket in there originally? maybe not.
Think I read something about a gasket goo solution, these rubbers are really expensive.
Thanks guys.
RT


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2011 R1200RT
    

42Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Fri Jul 04, 2014 5:23 am

charlie99

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just some good petrol and heat resistant silicon type sealant should do the job bob ..

that bmw stuff  (verry expensive for quantity but amazingly economical for the amount required ) dreibond 1209  is good for this fix

you can get it from the bins at about half the price available here in aussie ....but put it in a combination order to spead out the freight costs

other wise there is suposed to be good alternatives in the "three bond " range ....remember the requirements  petrol and heat resistance ..

good luck mate ..it would be great to hear you have a good and steady idle at last ...under all conditions


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

43Back to top Go down   Idle increase when hot Empty Idle increase when hot Fri Jul 04, 2014 8:22 am

RT

RT
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Ta mate, not so bad in this cooler weather but need it fixed before the next trip up north in the hot climates.
Looks like I have the Go ahead to order new ones, from home office so need to pad the order out a bit more, new clips, 3 bond, seals, what else, before the bill arrives at the end of the month.


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2011 R1200RT
    

44Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Fri Jul 04, 2014 8:45 am

charlie99

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@RT wrote:Ta mate, not so bad in this cooler weather but need it fixed before the next trip up north in the hot climates.
Looks like I have the Go ahead to order new ones, from home office so need to pad the order out a bit more, new clips, 3 bond, seals, what else, before the bill arrives at the end of the month.

dont think you need new rubbers bob ....

just reseal the bottoms to the head ...has worked for a few of us

might need some new oceter clamps though ....fortunatley they are cheap

you could use the old ones if you strech them apart with some expanding circlip pliers

just a heads up mate


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OIdle increase when hot Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

45Back to top Go down   Idle increase when hot Empty Idle increase when hot Fri Jul 04, 2014 8:09 pm

RT

RT
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Ta, was wondering that. Waz has a spare set he won't be using quickly so I thought I'd get it all undone and see if rubbers are ok first before I buy new ones. Got a 3 day quick trip tomorrow with Rickmeister, going to freeze ourselves through the Lachlan valley if it doesn't rain tooooo much.
Tks for tips mate.


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2011 R1200RT
    

46Back to top Go down   Idle increase when hot Empty Idle increase when hot Sun Jul 20, 2014 8:04 pm

RT

RT
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I'm going in Ma.
Idle increase when hot Imgp0210
Geez what have I done to my bike, hope I remember where it all goes.
Note the Dremel, an non OEM screwtopped bolt gave me lots of grief. So did using a grinder that close to
fuel residue, but got it out.
Now for the throttle body cleanup. Rubbers all look good, NO.4 was unevenly tightened and the sealing agent
wasn't contacting.
Time for my usual 2 days of procrastinating now before I get my hands dirty. Evil or Very Mad  Twisted Evil


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2011 R1200RT
    

47Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Tue Jul 22, 2014 8:33 pm

Waz

Waz
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Good find RT that should solve the mistery


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1988 K100 RS
1999 K1200 RS
1987 K100RS DJP sidecar
    

48Back to top Go down   Idle increase when hot Empty Idle increase when hot Wed Jul 23, 2014 8:18 am

RT

RT
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Have my new Suzuki screw clamps, rubbers sealed back on, ready to attempt the re attachment of plenum etc.
Does anyone have a positive answer to whether it's easier to replace the throttle body/T/B rubbers and plenum
all in one piece, or throttle bodies first, then struggle the plenum back on?.
Thanks


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2011 R1200RT
    

49Back to top Go down   Idle increase when hot Empty Idle increase when hot Mon Jul 28, 2014 9:56 pm

RT

RT
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Well none of that worked. Damn. This is really frustrating me. I have rebalanced the throttle bodies and still when it warmed up, straight up to 1,500 revs and sits there. When it has only just warmed up it sits on just under 1,000 rpm till it gets hot.
So I know I have good compression, new air filter, new and resealed T/B rubbers, and this time if I remove the oil filler cap with the engine running, it will drop the revs to just under 1,000. I'm guessing its not an air leak.

Next for me is to replace the Air flow meter with a spare and see what happens.
Any other ideas chaps??


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2011 R1200RT
    

50Back to top Go down   Idle increase when hot Empty Re: Idle increase when hot Mon Jul 28, 2014 10:47 pm

rosskko

rosskko
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Maybe if you re-polish the header pipes it might bring the idle down.

Or if you replace the rear main seal. I am sure I have one lying round somewhere I can send you  Embarassed


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1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

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