I have an XT 600 E (1993) and I've had a few problems with it. Got it in august as an incentive to pass my test , ran about on it after I finished my bike test , absolutely fine , then , one fateful day in october , the sidestand started geting niggly. Turned out the sidestand switch was getting confused. So we bypassed it. Cleaned carbs and replaced the spark around the time too.
Running fine then near the end of november , we had another problem. The bike is still having it now. Basically , it will be a bitch to start. It wont start about 7/8 of the time. The motor isturning over and we took the spark out and checked there was a spark gettign to it. There was , a steady blue/yellow spark (not electric blue as I though it would be but seemed ok).
When the bike does start , it runs absolutely fine. No niggles at all , just runs like the beast it is!
I've not been able to spot any recurrence in events with it (maybe rain or dirt getting in) but Ive started and driven it on rainy days just fine.
This morning , before I got ready for work (yes , sunday shift , hellish!) I went out and started it , started first time , 1 engine rotation , perfect. Didnt move it. Switched it off and got ready for work then came back out to it , wheeled it out the garden and tried to start the engine. It didnt start! So I wheeled the bike about 10 meters away from where it was , from my back garden down a ramp out our side gate and into the alleyway and that made the difference.
Now , thing is , I tried to start it about 4 times , whirrwhirrwhirr , whirrwhirrwhirr , whirrwhirrwhirrCLUNK*smoke* O.o , whi-bruuum :D.
Drove it to work and parked up. Tried to start it when I stopped and it started first time. Whi-bruum.
Now this has happened a couple of times, last time we had it running , same thing happened whirrwhirrwhirr , whirrwhirrCLUNK O.o , whi-bruum
So basically , we have already checked the grounds on the battery , made sure nothing was shorting on the frame. Checked the air filter (it was MANKY! smelled like a cows arse in there!) and cleaned it up , checked the carb (spotless) , checked the tank (some rust ,but not worryingly rusty), replaced our jesus (holy) exhaust with a quill one (sounds amazing btw , a evo2 in case you are wondering), replaced a burst inlet rubber and replaced the solenoid. Got one of my dads mates , a forklift mechanic , to check it over as a 2nd set of eyes. nothing. still happening. Also tried 3 different batteries in it , charging em after each use.
I am left thinking it is either the stator coil or the starter motor. The smoke I saw this morning seemed to be coming from the starter motor but it seems like it's turning. Stator coil would only affect it if it was running surely (its just a charging unit) could it maybe be debris in the crank getting in the way of the pickup on the flywheel?
I just dont know and its killing me to see such a bike in the back garden