Originally Posted by bigbear
85 K100 does NOT have ABS unless someone changed the brake system.
Sounds like something in the master cylinder is broken or stuck. Right side crash he may have hit the front brake also.
If it has been sitting idle for some time may be cheaper and easier to just replace the master cylinder.
Other things to consider if the bike has been sitting:
Gummed up fuel pump, injectors and pressure regulator.
Yes, the piston is stuck in the M/C but supposedly not from the crash. He claims it was working until a year or so ago.
I've already pulled the pump...it is locked up with corrosion, all of the rubber parts in the tank are dissolved and just a black gummy mess.
I suspect the injectors are gone as well, and the regulator. The regulator I may be able to save by soaking it in naptha. But if not E bay is always an alternative.
About the ABS....The book says it doesn't have ABS but on the instrument panel it has the ! in the triangle which according to the book is for the ABS along with a tiny light right above the clock, which it has.
Also, it is supposed to be a 2 valve engine but the valve cover has the 2 humps just like the LT's twin cam engine, it looks nothing like the 2 valve engine's valve cover...maybe someone transplanted the engine???
On the injectors...does anyone know the flow rating of the K100's injectors? I have a set of eight 19# bosch/Accel injectors sitting around. I can't imagine they would be larger than that.