K100rs - K-Bikes.com - Excellence in Motion
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post #1 of 4 (permalink) Old Aug 19th, 2007, 1:34 pm Thread Starter
Join Date: Aug 2007
Posts: 3

My 85 K100RS, 67,000 miles, developed a disconcerting problem after I had the motor professionally replaced with a used 30,000mile K motor - it died 40 miles out of the shop. I got it started but it died again while I was seriously leaned into a turn. Once I got out of the hospital and had the bike hauled home, it started long enough for me to ride it to my shop. Then it didn't start again for a month. Then it started but wouldn't stay running. Then it didn't start again for another month. Yesterday it started, ran for 30 seconds and died. It started a couple more times but wouldn't run.

Ideas, opinions, advice?

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post #2 of 4 (permalink) Old Aug 19th, 2007, 9:14 pm
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Join Date: Jul 2007
Location: Grafton, West Virginia, USA
Posts: 26
Disconnect the plug under the tool tray, Left side under seat. Clean and reconnect. Make sure you hear/feel the engagement click. I had similar difficulties and that remedied it just before taking it to shop. That was about 2500 miles ago. no problems since. hope that helps you out.

( gone but not forgotten)
1985 K100RS
Alaska Blue
(Current Bike)
1999 Silver & Blue (Zebra)
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post #3 of 4 (permalink) Old Aug 22nd, 2007, 10:28 am Thread Starter
Join Date: Aug 2007
Posts: 3
square one rolls on

to kjwrad: I tried it , didn't work. Obviously something else is intermittently amiss. Thanks.
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post #4 of 4 (permalink) Old Aug 22nd, 2007, 6:01 pm Thread Starter
Join Date: Aug 2007
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found it, fixed it, rollin'


Steve Prokop, beemer master mechanic, told me to try the gas tank electrical plug under the right side cover, a longish white deal. I found it, pulled it apart, blew it out, clicked it together and touched the starter. The bike immediately fired. I let it run for 20 minutes. Turned it off and started it again. I did this over and over. Starts every time. Runs sweet.

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