BMW K bikes (Bricks)

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Yelland

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Hey K-family,

Finally I have time to work on my k100 again. It has been too long and I am on my way to getting the old girl on the road.

I have one last problem.. It won't start.

I press the start button, it turns over to the point of sounding like it will start and then just stops. Then the fuel pump kicks in.. and I retry the process..

The only way I can get it to start cold (and when I say cold the temp here is average 30 degrees C) is to use aerostart up the air intake. When it has eventually started It runs very well.

Help?

- It has a new battery
- new leads and plugs
- injectors cleaned
- new fuel
- fuel filters and pump checked.


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Home is where your bike sits still long enough to leave a few drops of oil on the ground.
    

duck

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Recheck/replace the fuel filter.


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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
    

Holister

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Check the coolant sensor. Measure resistance across pin #10 and #13 on the FICU plug counting pin spaces from the lead end. Should be somewhere around 2.0 kilohm at 30oC


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1988 K100RT VIN No. 0094680
1989 K100RT VIN No. 0097367 (naked)
1996 K1100RS VIN No. 0451808
Fuel: 95 Octane
Engine Oil:Nulon Full Synthetic 15W50
Gear Box Oil: Nulon Synthetic 75W90
    

RicK G

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Check the plug to the ECU and ICU are seated properly and check out this thread which is running ATM
http://www.k100-forum.com/t11114-can-t-start-a-bike-that-has-been-off-the-road-a-while-any-suggestions#132708
http://www.k100-forum.com/t11124-ignition-issue
It saves me retyping Laughing


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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
    

Yelland

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@RicK G wrote:Check the plug to the ECU and ICU are seated properly and check out this thread which is running ATM
http://www.k100-forum.com/t11114-can-t-start-a-bike-that-has-been-off-the-road-a-while-any-suggestions#132708
http://www.k100-forum.com/t11124-ignition-issue
It saves me retyping Laughing

Thanks heaps for the read.

It is a weird one, that I think is pointing to a loose inception in the ECU or ICU.. whatever one is the silver box under the seat.

I went out to start trouble shooting and the thing works completely fine, starts every time.. maybe the bike knew I was reading forums. Anyway, I took the plug off and gave it a good clean and made sure it was seated correctly anyway.

- I am not a fan of stuff just starting to work.. because it may just decide to stop working.. ha

Thank you all so much for your help.


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Home is where your bike sits still long enough to leave a few drops of oil on the ground.
    

RicK G

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Yeah I know how you feel. Intermittant electrical problems are the worst kind, you never really know if they are fixed and your waiting for the next time they stop in the middle of an intersection.


__________________________________________________
"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

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Ifeel your pain

good 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%O
    

92KK 84WW Olaf

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I have discovers that the plastic retainer for the plug, on the silver unit under the seat, can crack and give an intermittent fault as in cut out or not start. Took me a while to discover that as I had another fault at the same time. If a K cuts out after going over a bump the fuel plug connector to the fuel tank [especially early Ks with bolt on tank] and that plug under the seat must be the prime suspects.


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1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 84,600 miles
1983 K100RS 0011175 Fricka 29,000 miles Damn K Pox
    

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