need several parts for 1985 k100rs

[bouck]

Hello k-bike folks. How fortunate I have found this forum! I bought an '85 k100rs in less-than-perfect condition. It is mechanically strong, however, and most of the neglect appears to be cosmetic. I am waiting to recieve my Clymer guide in the mail so that i can do my final drive and spline lube properly. What i need is a new gas cap assembly. It appears the previous owner grew a bit impatient with the old lock! Also, the rear running light does not work. After checking the obvious (bulb, wiring) i took it to the local mechanic, and he told me that these old k-bikes should not have a light switch, which mine does, which may be why the rear runner is not working. Anyone looking to give a novice some sound advice, you've come to the right place!

[brucecha]

You really can't do much until you get your manual. The running lights are relay controlled. Yours probably failed, hence the switch control.

Check "Beemer Boneyard" for parts.

[UncleRock]

Check this out hit me (http://www.ibmwr.org/)
Go to the market place, hit it, then to the classified's,
Some people run a switch because they don't want to burn lights in daytime, if you have a weakened battery, the low juice can cause the starter relay to stick open. Thus cut out any extra draw.
Rock