BMW K bikes (Bricks)

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1Back to top Go down   85 K100 won't shut off Empty 85 K100 won't shut off Wed Nov 02, 2016 11:51 am

xASmith88x

xASmith88x
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I have been having an issue with my 85 K100 not shutting off via key or kill switch. The only surefire method is pulling fuse 1.  I can stall it out, but would rather not use that as a fix.
I have checked the FI relay and it is good, the starter button is not stuck and the ignition switch is clean.
I did setup an acewell 2853, but I ensure everything was connected properly.
The bike runs perfectly without the key, I could probably go for a ride with the key out and it switched off...

    

2Back to top Go down   85 K100 won't shut off Empty Re: 85 K100 won't shut off Wed Nov 02, 2016 12:02 pm

92KK 84WW Olaf

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I am not expert on the K wiring but it sounds like something that should be powered via the ignition and kill switch is getting a direct live feed from a permanently live circuit.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

3Back to top Go down   85 K100 won't shut off Empty Re: 85 K100 won't shut off Wed Nov 02, 2016 12:06 pm

xASmith88x

xASmith88x
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That was my thoughts as well, but I even tried a new wire harness and the issue persisted.  Could the ICU be at fault?

    

4Back to top Go down   85 K100 won't shut off Empty Re: 85 K100 won't shut off Wed Nov 02, 2016 4:50 pm

Holister

Holister
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It won't have anything to do with the ICU or the FICU. They are concerned only with the timing of ignition and fuel. If the engine is running then these will be ok. This is a power issue.

It won't be a closed short in the Ignition switch because the kill switch would cut power to that anyway.

So it could be the kill switch itself has a closed short. Have you had it apart recently?

A more likely cause imo will be the Load Shedding Relay and or the Starter Relay.
Try swapping the LSR with the horn relay. They're the same.
Fried (open short) SR contacts will cause the starter to run continuously, requiring the battery to be disconnected to stop it. You can pull the cover off it to check out, clean the contacts and bench test etc.

Q: Do you have a starter button? Sometimes the button itself breaks and pops off.


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
  85 K100 won't shut off Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

5Back to top Go down   85 K100 won't shut off Empty Re: 85 K100 won't shut off Fri Nov 04, 2016 10:44 am

xASmith88x

xASmith88x
active member
active member
I have not had the Kill switch apart, Ill swap the two relays and see the result as well as inspect the starter relay.

my starter button is good. i did check that. I will have an update after work

    

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