BMW K bikes (Bricks)

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88

88
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Start a new thread "Too good to Show, have to ride it" ! cheers

Fantastic result mate, I really am thrilled for you and slightly (Read totally) in awe of what you accomlished. I'm sure if you walked into a showroom with $20k you wouldn't have as much fun.

Virtual clinkies 85 rt resto ...my attempt ...hey im not into making a show bike ... 22936


Ok, now I'll have to do some more I guess or I'll be left behind!


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85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log1188....May contain nuts!85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

Be made

Be made
Life time member
Life time member
@charlie99 wrote:well this thread is coming to an end .....just a few more posts and it will reach the 1000 number and alas break up the journey as new posts will be blocked and closed to further contributions

any thoughts to what I should do ?

start a new thread ...with a similar name and conventions ?

ill leave it to you all


cheers
I have been watching this thread of yours with great interest and have to give you the big handshake because . . . . I will hardly EVER follow ANY thread but you have kept this so lively with the constant updates I found myself logging in just to have a peek. WEhat an inspiration you are man, To all of us I hope

Well done on the success of the rebuild!

I think you should start a new thread called "Gerty's Journey" and begin it with a summary of what the bike has gone through to date and go from there

Congrats man, A job really well done

Regards

Keith

    

AJ.Valente

AJ.Valente
Life time member
Life time member
@Inge K. wrote:
To bad that BMW must have mounted these nuts the wrong way around on
a awful lot of bikes.
I don't know what to say to that, mechanics do what they are told. But, if the engineers didn't specify how the assembly should go together, then anything can happen. Shocked

If you look carefully, there are ring washers tack-welded to the nut, and these washers are split on one side. The flange gets very hot, and as washer heats up it will expand around its circumference. The effect of an expanded washer is to widen the region of pressure on the flange, thus reducing deformity of the flange and making for a more efficient seal.

On the other hand, if washer is not placed next to the flange there is no expanding pressure region when the assembly heats-up. Not saying you can't do that, only that washers in this configurationperform no significant function.


__________________________________________________
'98 K1200RS Marrakesh Red

My old K100 RT Pics and Mods
    

Stan

Stan
Life time member
Life time member
Get great Gerty going and going....new name for the thread..better hurry.:joker:


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85 rt resto ...my attempt ...hey im not into making a show bike ... 2854237993
1983 K100basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
How 'bout...
"85 rt resto ...my attempt ...hey im not into making a show bike...redux"

It has something familiar and....it's a little bit fancy.

85 rt resto ...my attempt ...hey im not into making a show bike ... Maccas10

New Grand Gerty!*









*no hard feelings if you laugh and move on.
Laughing


__________________________________________________

1987 K100RS, '89 K100 w/K1100RS engine, '93 Framed K11/K12 engine 'Big Block', '96 K1100RS, '09 K1300GT, '07 K1200R, '95 R100 Mystic & '77 R75/7.

    

Inge K.

Inge K.
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@AJ.Valente wrote:If you look carefully, there are ring washers tack-welded to the nut, and these washers are split on one side.

It isn't any washer tack welded to the nut, but it is a small slot cut in the
round part of the nut...the middle part of this slot is then pressed together....
this makes the nut self locking.


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

Dai

Dai
Life time member
Life time member
Sorry guys - I've just got to do this.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Dai

Dai
Life time member
Life time member
THREAD POST 1000!!! 85 rt resto ...my attempt ...hey im not into making a show bike ... 44271 85 rt resto ...my attempt ...hey im not into making a show bike ... 44271


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Inge K.

Inge K.
VIP
VIP
Now you got a busy time ahead, Charlie........the next 1000 during this
year?.....364 days left bounce .


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

charlie99

charlie99
VIP
VIP
well this could be the last one 999 before this... lets see

still chasing running heat issues ...which could be a left over from the Guyra event recently where gerty was running hot and boiling over

did a back flush yesterday ...removed radiator and all ...lots of debris found ..possibly from a chemical clean some months ago and gunk has solidified ..gave it a run and heat issue not resolved, increases with revs ....
85 rt resto ...my attempt ...hey im not into making a show bike ... 10896271_10202082029412462_5636006546464759847_o

in any case newer radiator installed . a proven good one ...transferred the fuel cooler as well ...

85 rt resto ...my attempt ...hey im not into making a show bike ... 10904571_10202082035172606_10392780004277468_o

lets see how this goes later today when the silicon goes off on the water pump

85 rt resto ...my attempt ...hey im not into making a show bike ... 10857293_10202082033932575_2015711957502661815_o

if this is the last one ........wish me luck


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Inge K.

Inge K.
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Good Luck sunny .........changed the radiator cap yet?


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

charlie99

charlie99
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this o ring appears to fit well inge.... just seals around the inner lip ...till I can get the right thing

85 rt resto ...my attempt ...hey im not into making a show bike ... 20150110

85 rt resto ...my attempt ...hey im not into making a show bike ... 20150111


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Inge K.

Inge K.
VIP
VIP
85 rt resto ...my attempt ...hey im not into making a show bike ... 112350


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

charlie99

charlie99
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well it seems the consensus is that its running lean and hot I had found some issues after reinstalling the old injectors ..namely the o rings at the base of the injectors weren't sealing to the head ( which could have been happening on the new injectors as well ...but a odd spray pattern was noted and will be requesting another unit from the supplier )

I guess the mods to the head have promoted easier breathing and thus a leaner mix

Ill modify the afm and take a couple of clicks out of the tensioning spring to promote a better swing of the barndoor hopefully to richen up the mix a bit

I have a spare that i have modified and waiting for the silicon to go offon the lid then to install as a test

mr klompy asked if I had a exhaust gasanalyser ....lol ...I guess ill have to use the feedback of exhaust colour ...plugs and engine temperature whilst running to see what happens .

its all go ...but running out of time before a return to that horrible place .....work ...!!

wish it was just a bit cooler down here ...to allow me time to play without becoming exhausted from the heat and humidity during the day ...( the neighbours don't take politely to any noises at near night time )

more fun on the way ...woohooo !


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
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VIP
well fuel pressure regulator finally turned up on Monday ...(would be after the weekend ...blast )

85 rt resto ...my attempt ...hey im not into making a show bike ... 885540_10202193696004057_4703307019874802880_o

although it has 9 mm spigots ...ill see what I can get to make it 8 mm

these should do the job
85 rt resto ...my attempt ...hey im not into making a show bike ... 10924141_10202214881293676_3568507719308994758_o

using a t-piece the pressure on the system (stock ) fluctuates from around just under 2.5 bar to just below 2 bar

85 rt resto ...my attempt ...hey im not into making a show bike ... 1921077_10202215639272625_8286050279131270878_o




with the vacuum line off a nice steady 2.1 bar ...and a steadier idle (at cold )

85 rt resto ...my attempt ...hey im not into making a show bike ... 10688271_10202215644832764_3813021064682955152_o

thinking I should aim at first for 2.5 bar steady ...then work from there

more to happen today


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Nice lookin' piece, Chaz. What sort of money is an FPR like that?

Cheers.


__________________________________________________

1987 K100RS, '89 K100 w/K1100RS engine, '93 Framed K11/K12 engine 'Big Block', '96 K1100RS, '09 K1300GT, '07 K1200R, '95 R100 Mystic & '77 R75/7.

    

charlie99

charlie99
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about $50 dazza
other smaller units available though for not much more
the issue is going to be the size ...and the cutout in the lower air box to fit it all in ... hose locations and all that stuff
dry fit up ,,,has a plan for me ...off to get some bits to fit it up .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
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almost fitted up and working ...just waiting for the paint to dry somewhat

85 rt resto ...my attempt ...hey im not into making a show bike ... 10397158_10202216920584657_7701559563557353490_o

85 rt resto ...my attempt ...hey im not into making a show bike ... 10945852_10202216920984667_4687266026252438326_o

85 rt resto ...my attempt ...hey im not into making a show bike ... 10924136_10202216921624683_5499157208434745470_o

tomorrow pressure testing


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

ReneZ

ReneZ
Life time member
Life time member
What's the pressure with the bike not running? Can you energise the pump without running the bike?

Further, not knowing the quality of the pressure gauge, is there a way to verify it with another? You could chase your tail just to find out it indicates .5 low ;-)


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

Rene


BMW K100 - 1985 (0030029) 85 rt resto ...my attempt ...hey im not into making a show bike ... Rain
BMW K1200GT - 2003 (ZK01223)
    

charlie99

charlie99
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pressure doesn't hold very long at allafter motor stop rene , could be a backflow valve issue in the pump or a knackered fpr (most likely )



update ...I can blow through the old fpr without much effort .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

ReneZ

ReneZ
Life time member
Life time member
There's your answer :-) Theoretically (:-)) the system should stay on pressure, but there are always some leaks. However pressure should only go down slowly. If you lose the pressure in a few minutes there's something off.


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

Rene


BMW K100 - 1985 (0030029) 85 rt resto ...my attempt ...hey im not into making a show bike ... Rain
BMW K1200GT - 2003 (ZK01223)
    

charlie99

charlie99
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well got it all in ok

85 rt resto ...my attempt ...hey im not into making a show bike ... 10917796_10202221227612330_5119736654437311019_o

85 rt resto ...my attempt ...hey im not into making a show bike ... 10922390_10202221228332348_4652045240519988069_o

got it to sit at just under 3 bar ...vacuum line off ...which meant it hovered around 2.5 bar with vacuum on
85 rt resto ...my attempt ...hey im not into making a show bike ... 10955212_10202221229492377_5102998127072541556_o
85 rt resto ...my attempt ...hey im not into making a show bike ... 10891745_10202221230052391_7283386156925107252_n


sill running a bit warm might take it up a bit higher

good news on power off it drops pressure to just under 2 bar ...and doesn't leak away immediately


update ..took it to 3 bar and it runs cooler ....perhaps a little fudging around and might be a fix ...(still to align-sync the throttle bodies at idle etc)



Last edited by charlie99 on Sun Jan 25, 2015 7:52 am; edited 2 times in total


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Stan

Stan
Life time member
Life time member
Glad to see you dont leak anymore.


__________________________________________________
85 rt resto ...my attempt ...hey im not into making a show bike ... 2854237993
1983 K100basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
    

charlie99

charlie99
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ride today

gerty goes like a rocket ....too scared to open her up over 5 or 6k


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Stan

Stan
Life time member
Life time member
Great news. Double demerits up there this weekend?


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85 rt resto ...my attempt ...hey im not into making a show bike ... 2854237993
1983 K100basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
@charlie99 wrote:ride today
gerty goes like a rocket ....too scared to open her up over 5 or 6k
Now that second bit is something I'd have never thought I would ever hear from you, Chazza!


__________________________________________________

1987 K100RS, '89 K100 w/K1100RS engine, '93 Framed K11/K12 engine 'Big Block', '96 K1100RS, '09 K1300GT, '07 K1200R, '95 R100 Mystic & '77 R75/7.

    

charlie99

charlie99
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um should have said ......yet !

giggles


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

RicK G

RicK G
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ainsjac wrote:Great news. Double demerits up there this weekend?
Not here


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

charlie99

charlie99
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VIP
a bit of an acquaintance (Chris Chapman) in another place, took the time to post a pic of "gerty" in an unusualsetting ...I guess from something I posted recently

I was amazed and gob smacked to be honest ...looks far better than I remember ....


thanks chris ...appreciate it heaps

heres the pic


titled ,,,
Charlie Bashford's K100 in orbit around planet BMW
85 rt resto ...my attempt ...hey im not into making a show bike ... 1454690_732374266877836_7263584894001856663_n


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
VIP
VIP
back from a trip in the country ...call it a settling in ride ....to visit our mates Alby and Nic...and to return some valuable assembly tools that I borrowed for the head job ( valve spring compressor ...piston ring compressor and a couple of others ) thanks alby ..invaluable stuff to have on hand ...and certainly made the job heaps easier ..... Gerty ran really well with enormous amounts of power on hand.... if one wanted to ...finally took her to 6 grand and little further up a good twisty windy bit ( in third ) ,,stunning performance ....now the not so good news .....430 something ks travelled and 31 litres of fuel ....giggles ...guess ill have to wind the fuel pressure down a bit ....hehe
85 rt resto ...my attempt ...hey im not into making a show bike ... 10475954_10202249057108050_7210817420842661489_o

over 1100 ks since the head job

maybe an oil change and a regulator adjustment before the "Karuah river Rally " next week


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Inge K.

Inge K.
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@charlie99 wrote:...guess ill have to wind the fuel pressure down a bit ....hehe

Or the enthusiastic right wrist, after a period of standstill Razz ...well done, Charlie.


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

charlie99

charlie99
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who me ????? giggles

thanks inge ...and all


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

88

88
Life time member
Life time member
Time to change your signature line from "cheesy grin" to "Permanent Grin" by the sounds of it Charlie !!


__________________________________________________
85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log1188....May contain nuts!85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

blaKey

blaKey
Life time member
Life time member
Charlie, I am amazed at the work and the improvements you have done to Gerty.

You haven't got a shed. It's all done "in house".

The bike is a credit to you.

Thanks for sharing.



Last edited by blaKey on Mon Feb 02, 2015 3:20 am; edited 1 time in total (Reason for editing : I've got one word for you lot..."proof read". Do it.)


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

Holister

Holister
Life time member
Life time member
@blaKey wrote:Charlie, I am amazed at the work you done and the improvements you have done to Gerty.

You haven't got a shed. It's all done "in house".

The bike is a credit to you.

Thanks for sharing.
+1 that
Great thread. Learnt a lot.
Thanks Charlie


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1988 K100RT VIN No. 0094680
1989 K100RT VIN No. 0097367 (naked)
1996 K1100RS VIN No. 0451808
85 rt resto ...my attempt ...hey im not into making a show bike ... Austra12 Fuel: 95 Octane
Engine Oil:Nulon Full Synthetic 15W50
Gear Box Oil: Nulon Synthetic 75W90
    

charlie99

charlie99
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still fettling in gerty

next weekend hope to sort the valves as I think I have 1 or 2 too tight and 1 loose

which is certainly affecting a good idle ...and more I figure

also to wind back the afm ....which I had taken up to 2 clicks looser on the springing ...still running massively rich after taking the pressure down to about 2.7 bar (vacuum line off ) but happy that it is a good spray pressure .

I figure the afm controls the duty cycle - duration of the injector timing based on flow through it . and ive gone too far
so ill try taking it back 1 click and see the differences ....all really hard to predict without some good tools I guess
perhaps an o2 sniffer kit might give me much better feedback

got scared off by the turbo shop boys wanting over 130 for just a little while on their machine ...they didn't even have a separate exhaust analizer ...had to use their dyno without actually running the rolling road

perhaps I can find a gas conversion fitter with the right tools cheaper ...but working out of town doesn't leave a lot of time for investigation

I had changed the plugs before taking off from Brisbane last weekend and achieved a smooth idle ...but number 1 missing again at idle by the time I got to warwick ...so I guess too tight on that one eh ?

bit miffed that the performance that I experienced on the ride up to albys place last weekend had dropped off a fair bit . most noticed up the hills of the thunderbolts way

till I remembered I had reinstalled the snorkel during the refit before the trip south and craig saying that he heard much more induction noise during a swap ride from the lookout to about Nowendoc ....so took it off about warwick on the way home ...and it did breath so much better ....

I remember reading on the internet bmw owners site that it made little difference on performance ... I guess they meant on a standard kit machine ?

but I think there is some difference on gerty on current trim , especially at higher flow rates through the whole air feed path .

id better work on the alternate filter and afm paths that I have planned
on a happy note running coolant temps are good an stable ....even in erm spirited hill climbs and with the 2 core radiator still fitted .

will convert back to the 3 core radiator as the adjustments are completed and I have discounted the coolant flow path as the reason for running higher than normal temperatures but first I will install nutserts for all the bracketry for the fuel cooler and side panels etc on the radiator frame , makes a much better look and maintenance outcome .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

sidecar paul

sidecar paul
Life time member
Life time member
Charlie,
When my FPR failed recently, I was discussing FPR's with a friend who used to work on fuel systems (even at F1 level) and he knew a lot about the development of the standard K Bosch FPR.

One point he made was that they can be prone to vibration problems so the valve needs to be in a plane that is least affected by vibration. BMW positioned the valve in a horizontal plane above the engine, which does makes the hose runs rather awkward, but that was the probable reason.

I notice that your new regulator is positioned with the valve in a vertical plane above the engine and I'm wondering if, at certain revs, the valve is vibrating shut causing the richness???

I know this is an obscure thought, but..........strange things sometimes happen.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015)
....No CARS never ever!
    

charlie99

charlie99
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hmm some good input paul

possibly has more to do with the afm springing slacked off 2 clicks and running a richer mix at all revs

and the valve shim adjustments

today hope to get the shims right so I can achieve a good idle at all temperatures

and will swap the other afm (standard )back into gerty for a trial after, doesn't take long at all now .

im thinking an ego sensor project kit might be the way to go for getting it right ...then will have it on hand for the community ,if needed


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
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just a before and after ...amazing what one picks up along the road



85 rt resto ...my attempt ...hey im not into making a show bike ... 1500900_10202315932659897_6748665329151129897_o




85 rt resto ...my attempt ...hey im not into making a show bike ... 10903868_10202315932179885_2283081044012269296_o

85 rt resto ...my attempt ...hey im not into making a show bike ... 10830656_10202315936659997_5857454642787844067_o


a little later old gerty doesnt look too bad ....some repairs to do ...after laying down in the dirt...lounging around on the side of the track

85 rt resto ...my attempt ...hey im not into making a show bike ... 10818509_10202316897404015_5643907095354635413_o


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
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so ...doing a little comparison exercise on the afm units

getys original and running lean unit has 1.11 volts at the output of the afm at no flow

the alternate unit (which I had adjusted and corrected the connector on the wiper arm ) reads about 1.18 at no flow (but running rich like crazy )
85 rt resto ...my attempt ...hey im not into making a show bike ... 20150212

also with the vacuum hooked up for a pretty reasonable flow ..the differences between the modified unit (2 clicks released on the spring tension ) and the standard unit are pretty similar but about .02 voltage differencein favour of the moded afm

just recalibrating my new cheapo multimeter to read exactly the same as the 200 dollar( 7 years ago )meter for a better a, b comparison

just a note the air bypass screw seems to have little function after about 10 mm deflection of the air vane ....well so far that I can measure ...but will have to come up with a different suck method for moderate air flows ...just for comparisons

it appears to me that the slight differences between the 2 at .02 differences atatleast 3/4 flow has a big effect on consumption ...quite remarkable

im going to hook up the cro and measure the mark space ratios ( injector duty cycle ) at revs on gerty ...the techtronics cro unit gives these figures pretty accurately just from the diagnostics screen whilst running
possibly manipulating the vane whilst in running mode tosee any differences

still thinking an exhaust sniffer for mix would be a good thing ..so will investigate a few options

but will revise the afm setting on the modified unit to be closer the that 1.10 mark id be happy with 1.14 and increase the spring tension by 1 click closer to the original setting which might make that thirsty fuel economy a little better

all in an attempt to get on the road and speeding south in a week or so

also have a new handle grip (with gear to the cam throttle chain ) on the way ...as mine seems to have a severe grinding - restriction feel as opening those throttle bodies further than I have been able to before .

a little test ride might be happening tomorrow ...to pick up a trailer hitch from near here ...to be sent off to one of our brothers ...over there ..


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Stan

Stan
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Bit concerned about your post......you are looking for another sucker and talk about a exhaust sniffer.


__________________________________________________
85 rt resto ...my attempt ...hey im not into making a show bike ... 2854237993
1983 K100basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
    

charlie99

charlie99
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sorry stan ...yes it is a bit detailed technically

for some ...they will understand ... sorry I clouded up the simplicity of the system ...

just trying to gather results and prove functions old mate


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

Stan

Stan
Life time member
Life time member
Just stirring Sir Charlie.


__________________________________________________
85 rt resto ...my attempt ...hey im not into making a show bike ... 2854237993
1983 K100basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
    

charlie99

charlie99
VIP
VIP
85 rt resto ...my attempt ...hey im not into making a show bike ... 214585


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

K75cster

K75cster
Life time member
Life time member
Charlie have you considered hitting the recyclers for a used vacuum of bigger capacity? and wander down to a pool or plumbing store and buy one of those 2 or 3 inch pool or tank plastic water taps the flat slide ones so you can regulate how much sucking goes on. I'd consider it easier to calibrate the two if you can set the rate of flow through the map flap via such a device. It would give you many setting just like riding would have us with the throttle open at different points. Perhaps 3 decimal points areneeded to give a clearer picture of what your 2 units are doing.
P.S.
I think Stan is getting worried about you.


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

charlie99

charlie99
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just what i had in mind keith

also wouls be good to have a pressure guage in there as well just to replicate the settings to some accuracy ...huh ?

just didnt consider that tenths of millivolts would be that significant till now


anyhow meters calibrated far closer together now
85 rt resto ...my attempt ...hey im not into making a show bike ... 20150310

and finally back to similar settings
85 rt resto ...my attempt ...hey im not into making a show bike ... 20150311


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
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still running lean ...to a very slight degree at 1 click less spring ... after adjusting bypass idle at afm

so afm out and jack it up just a little bit ...maybe 1.16 at 1 click instead of 2 on the spring

good power though when on the throttle with fuel set at 3 bar

wish I had the vacuum sync tools to diagnose some slight idle inconsistencies .... will get some I think


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

charlie99

charlie99
VIP
VIP
bit of a ride today down to the gold coast

good temps at 110 kph ....

bit touch warm on idling through suburbia

but 5.75litres per 100 k ....... a lot better

still at it


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O85 rt resto ...my attempt ...hey im not into making a show bike ... Au-log10
    

88

88
Life time member
Life time member
Wish I could get that. Mines more like 6.3L/100km


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85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log1188....May contain nuts!85 rt resto ...my attempt ...hey im not into making a show bike ... Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

Born Again Eccentric

Born Again Eccentric
Life time member
Life time member
88KE wrote:Wish I could get that. Mines more like 6.3L/100km
6.3????!!!!
Geeez Will - try 2nd gear (or higher) Very Happy


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85 rt resto ...my attempt ...hey im not into making a show bike ... Uk-log1085 rt resto ...my attempt ...hey im not into making a show bike ... Sco-lo1585 rt resto ...my attempt ...hey im not into making a show bike ... Eu-log10
Paul 85 rt resto ...my attempt ...hey im not into making a show bike ... 905546712

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurancewrite-off rebuild Feb 17
"Donor" K100LT 1990 (Red) (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike). June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

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