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Author Topic: WTB K100 starter. I think  (Read 4187 times)

Offline Lbyvik

  • ^ Motobrick Curious
  • Posts: 63
WTB K100 starter. I think
« on: December 19, 2012, 09:04:21 AM »
Ive got an 87 k100. The starter seems to be going bad. It spins up but wont engage.
Im a teacher and cant fork out $450 to maxbmw for a starter. Ouch!!

So what you guys got out there?  Or can i just replace the solenoid?  Other ideas?
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1993 K1100 LT
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Offline frankenduck

  • Adrninistrator
  • ^ Quintessential Motobricker
  • Posts: 5511
Re: WTB K100 starter. I think
« Reply #1 on: December 19, 2012, 10:23:27 AM »
No solenoids on K bikes.  They employ a sprag that catches to turn the engine.  Yours is probably gunked up.

More here: K Bike Starter Info
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Offline wmax351

  • ^ Quintessential Motobricker
  • Posts: 1237
Re: WTB K100 starter. I think
« Reply #2 on: December 19, 2012, 07:18:09 PM »
Sounds like a sprag issue, as duck said. If it is something wrong with the starter itself (unlikely based on your symptoms) i have one i can sell.
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  • 91 BMW K75 Standard, 98 Moto Guzzi California EV
Bikes:
Current:1991 BMW K75 Standard, 1998 Moto Guzzi California EV11
Past: '83 BMW R65LS, '75 Honda CB550F, '69 Honda CB175, 1999 Royal Enfield Bullet 500, 1973 Triumph Tiger TR7V, 1971 BMW R75/5 in Toaster outfit, 1979 Harley Davidson XLS-1000 Sportster Roadster

Offline Beemer01

  • Motobrick Curious
  • Posts: 23
Re: WTB K100 starter. I think
« Reply #3 on: January 04, 2013, 04:25:02 PM »
+1.  The sprag clutch is gunked up.  Add CD-2 to the oil - get someone to push start the bike - run 100 miles and that almost always clears up the problem.  Drain the old oil and replace with fresh stuff.

$5.00 solution.
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