Hey, everyone, first time poster on this forum. I’ve been reading on here for a while and this site has definitely helped with solving an electrical issue before. I have a 1987 K75 with 10,000 miles on it. Let’s see what you guys think. Today I was riding to work and coming to a red light. I started decelerating by braking normally as well as down shifting to 3rd gear and engine braking. I noticed as I held in the clutch the rpms dropped unusually low. (The bike was already warm by the way. I’d been riding for about 10 minutes already and its 65 degrees out.) Anyway the rpms dropped to around 700 and the engine sounded like it was gonna stall until I let out the clutch for minute. I’m still braking as usual and I shift down to 2nd gear to assist with engine braking. Again the rpms drop low and the engine sounds like it’s gonna stall. I let the clutch out and finish braking to a stop. Once I stop (still in second gear with the clutch pulled back in now) the engine dies. While Im waiting for the left turn arrow I switched it into neutral and started the bike up again. It wouldn’t hold so I flipped the “choke” switch to its half way position to raise the idle. Seemed to run alright with the choke half way causing the idle to raise. I proceed onto the last stretch of road before work. Everything’s running great, I get up to 70mph in 5th gear and start to slow down because my turn is coming on the left. As I was driving I put the “choke” switch back into its normal “off” position. I start to slow down in the same way as before using engine braking to assist me. I shift down to 4th, all good, engine braking. I shift down to the 3rd to continue engine braking all good, but this time as I’m COMING to a stop, not even stopped yet, the engine dies as I pull in the clutch before I drop into second gear. Now while I’m coasting with the engine off, I shift down to neutral, start the bike, flip the “choke” switch back to half way and proceed to make my left turn into my work parking lot. I park the bike and now when I go to start it the bike will turn over and the starter will turn but as soon as the engine catches and runs on its own the idle drops and it dies.
I've tried starting it a couple times since i've been at work and as i switch between neutral, 1st, and 2nd with the engine OFF, the tach starts to jump around for about 30 seconds. The engine is not running and the tach jumped up to 3,000 and bounced back down. I have drained the battery trying to start it so i guess im stuck here for a little while.
I have almost a full tank of gas.
As I was accelerating and riding along, even after the first time it stalled out, the acceleration was smooth and even. No misfires or roughness at any point during acceleration. Also, been riding this thing for months now and no issues. Recently had to ride in severe rain but i cant imagine that doing much.
Thank you very much for any suggestions or advice.
