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1Back to top Go down   Timing Tools - TDC Depth Gauge Empty Timing Tools - TDC Depth Gauge on Fri Aug 26, 2016 12:06 pm

mjbtdi

mjbtdi
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Does anyone have a recommendation as to where i can buy a TDC dial gauge that is long enough for the K100.

I replaced the missing Hal sensor on a project bike and now need to set the timing.

    

2Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Fri Aug 26, 2016 9:36 pm

RicK G

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Set it there and it will be within 1°  I would recommend to advance it 4° (3mm on the outer edge of the plate) from there and the bottom end torque increase is astounding.
Timing Tools - TDC Depth Gauge Hall_s10


__________________________________________________
"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
    

3Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sat Aug 27, 2016 8:47 am

Holister

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@mjbtdi wrote:Does anyone have a recommendation as to where i can buy a TDC dial gauge that is long enough for the K100.

I replaced the missing Hal sensor on a project bike and now need to set the timing.
Agree. No need. I've had all the timing gear off as well as the valve timing gear including the camshaft drive sprockets. It all goes back together by sight. However, the first time I did that I did check that I had absolute tdc on zyl.#1 and just used a length of brazing rod and did it by feel. You can be finicky if you want but it ain't gonna make much difference. A crankshaft position sensor (HES) is a lot more forgiving than a set of points following a cam.

You may be interested in using this Road Timing method.


__________________________________________________
1988 K100RT     VIN No.  0094680
1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
 Timing Tools - TDC Depth Gauge Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

4Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Aug 28, 2016 7:52 pm

Rockman

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@RicK G wrote:Set it there and it will be within 1°  I would recommend to advance it 4° (3mm on the outer edge of the plate) from there and the bottom end torque increase is astounding.
Timing Tools - TDC Depth Gauge Hall_s10

So you turn the plate 3mm anticlockwise to get a 4 deg advance? is that right or have I got things arse about?

    

5Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Aug 28, 2016 8:43 pm

RicK G

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Clockwise is correct


__________________________________________________
"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
    

6Back to top Go down   Timing Tools - TDC Depth Gauge Empty thanks for the replies on Mon Aug 29, 2016 1:32 am

mjbtdi

mjbtdi
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thats great feedback, trouble is i was hoping it was the timing that was giving me the rough running.

I installed to that position and bike fired back to life, but runs rough and with the odd backfire..

I got the bike as a non runner with parts missing so this could end up being painful.

If HAL position is not that critical, any recommendations for next steps? - i am thinking check for air leaks next? i replaced the plugs which took it from barely running to rough running.

I do have a complete parts bike that i can use as a 1:1 scale model Smile


Thinking about it, i did get the hal sensor of the parts bike, could it be bad and still allow bike to run?


any ideas appreciated.

    

7Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Mon Aug 29, 2016 2:54 am

RicK G

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Usually Hall sensors work or dont work. The rough running is far more likely to be plugs, leads, coils or injectors
An early K100 may still have the grey almost black coils and they are known for giving trouble. The brown coils with orange towers are the best.


__________________________________________________
"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
    

8Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Tue Aug 30, 2016 11:54 am

Gauntlett

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Check the throttle butterflies haven't been tampered with, had to reset mine same symptoms, runs like a sewing machine now



Last edited by Gauntlett on Tue Aug 30, 2016 12:19 pm; edited 1 time in total (Reason for editing : spelling)

    

9Back to top Go down   Timing Tools - TDC Depth Gauge Empty update on Wed Aug 31, 2016 12:50 am

mjbtdi

mjbtdi
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thanks for the help!

So i checked the BBS's (Big Brass Screws), first one 5 turns out! set them all to 1.5 turns - my new vac gauges arrive friday and i will set properly then, anyway immediate improvement, still not great though.

I then sprayed carb cleaner around intake - engine raced, turns out vacuum caps all cracked, replaced those and idle got better still, sprayed again and engine increased speed but not crazy, thinking will replace the 4 rubber intake grommets next.

The bike is now starting at first press of the button which is great.

I also have coils, injectors and leads on the way so should get it running like a top soon! thanks all for your help -  i would have been spending hours monkeying with a dial gauge and the HAL thinking i was missing a trick with the timing if it wasn't for your help!

    

10Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Wed Aug 31, 2016 12:59 am

duck

duck
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I recommend getting the injectors reconditioned. Even if it does not solve your rough running problems it is a good maintenance item on 30 year old injectors.

http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/fis/fis.htm

Then sync the throttle bodies.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

11Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Wed Aug 31, 2016 10:52 am

brickrider2

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When you get to replacing the deteriorated rubber bits on the throttle bodies, pay close attention to their orientation.  A casual glance could leave one with the mistaken idea they are the same size on each end.  NOT SO!  Don't ask how I came by this information.  Embarassed

    

12Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Wed Aug 31, 2016 11:18 am

Holister

Holister
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@duck wrote:I recommend getting the injectors reconditioned. Even if it does not solve your rough running problems it is a good maintenance item on 30 year old injectors.
Agree. IMO you're better off with the original injectors rather that the so called 'upgrade' 4 hole injectors available on ebay. Easy to clean them yourself, just search Youtube. You can buy injector kits off ebay very cheap.


__________________________________________________
1988 K100RT     VIN No.  0094680
1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
 Timing Tools - TDC Depth Gauge Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

13Back to top Go down   Timing Tools - TDC Depth Gauge Empty Update on Sat Sep 03, 2016 11:16 pm

mjbtdi

mjbtdi
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thanks, new injectors work like a charm. I will keep and refurb originals, good excuse to buy wife that ultrasonic cleaner from harbor freight (for your jewelry dear hrrm).

Also got vac gauge last night, motion pro one from amazon....wish i had read reviews before ordering, its rubbish totally useless.

I found a mercury one, fingers crossed its not rubbish!

    

14Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sat Sep 03, 2016 11:22 pm

duck

duck
Life time member
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I've been very happy with a Morgan Carbtune.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

15Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Sep 04, 2016 4:24 am

charlie99

charlie99
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if the throttle body rubbers aren't split ...seems fairly common on the uppers ...but not the lowers ...until you pull them apart

quite often the seal between the head and the rubbers is the issue 

a dab of silicon around the sealing surfaces often solves the issue ,  I guess try and find something resistant to fuel ...as that is what spits back up the induction path and rubbers to the throttle bodies ..

good luck


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OTiming Tools - TDC Depth Gauge Au-log10

"redframe" rs "bitsa"  with many contributions from the k100 community ,,with many thanks
    

16Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Sep 04, 2016 6:40 am

duck

duck
Life time member
Life time member
I've come across lots of bikes where the lower boots between the TBs and the head are cracked and leaking. This is understandable as they sit right on top of the head and the rubber is subjected to rather extreme heat.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

17Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sat Oct 15, 2016 1:38 pm

TIV

TIV
Silver member
Silver member
@RicK G wrote:Set it there and it will be within 1°  I would recommend to advance it 4° (3mm on the outer edge of the plate) from there and the bottom end torque increase is astounding.
Timing Tools - TDC Depth Gauge Hall_s10

Would the K75 would also benefit from advancing 4 degree Rick?


__________________________________________________
1936 Harley Davidsson 750 (sold), 1964 BMW R69S (sold), 1973 Suzuki RM400 (sold), 1972 Triumph Bonneville (sold), 1971 BSA Thunderbolt (sold), 1972 BSA Lightning (sold), 1977 Yamaha XS650 (sold), 1971, BMW R75/5 (sold), 1973 BMW R75/6 (sold), 1984 BMW R100RT 1992 Yamaha FJ1200 ABS (sold), 1990 Harley Davidson Electra Glide (sold)
1990 BMW K75RT Ex-Police (owned now)
2004 BMW R1150RT iABS (owned now)

Cheers TIV
    

18Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sat Oct 15, 2016 7:59 pm

RicK G

RicK G
VIP
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Yes Even more so.


__________________________________________________
"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
    

19Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sat Oct 15, 2016 8:23 pm

TIV

TIV
Silver member
Silver member
@RicK G wrote: Timing Tools - TDC Depth Gauge 723598 Yes Even more so.


__________________________________________________
1936 Harley Davidsson 750 (sold), 1964 BMW R69S (sold), 1973 Suzuki RM400 (sold), 1972 Triumph Bonneville (sold), 1971 BSA Thunderbolt (sold), 1972 BSA Lightning (sold), 1977 Yamaha XS650 (sold), 1971, BMW R75/5 (sold), 1973 BMW R75/6 (sold), 1984 BMW R100RT 1992 Yamaha FJ1200 ABS (sold), 1990 Harley Davidson Electra Glide (sold)
1990 BMW K75RT Ex-Police (owned now)
2004 BMW R1150RT iABS (owned now)

Cheers TIV
    

20Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Oct 16, 2016 8:03 am

Crazy Frog

Crazy Frog
admin
admin
Have you check the crankcase vent hose (#10) for cracks or split?
Timing Tools - TDC Depth Gauge Vent_h10


__________________________________________________
Timing Tools - TDC Depth Gauge Frog15Timing Tools - TDC Depth Gauge Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

21Back to top Go down   Timing Tools - TDC Depth Gauge Empty Re: Timing Tools - TDC Depth Gauge on Sun Oct 16, 2016 6:31 pm

Rockman

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@TIV wrote:
@RicK G wrote:Set it there and it will be within 1°  I would recommend to advance it 4° (3mm on the outer edge of the plate) from there and the bottom end torque increase is astounding.
Timing Tools - TDC Depth Gauge Hall_s10

Would the K75 would also benefit from advancing 4 degree Rick?
Did this with my K100. Yes, makes a big difference and takes about 5 minutes to do.

    

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