Hello My bike starte began to smoke black smoke a lot after the stator was changed, it is oem husqvarna part and local workshop isntalled it. Now they dont hawe a clue what causes it. Bike seems to hawe too much gasoline but nothin has been changed in carburator. Is there some adjustments on stator or picup coil? originally i took my bike to workshop because it suddenly died after 4 hours of driving before workshop had adjusted the valves, bike did start eventually but didint rev and stumbled. Any guesses what might be the problem here?
Start with the basics, cold/hot compression check and leak-down test. You have to rule out mechanical problems (tight valves, etc) before anything else. .
My 610 has a worn out needle on the slide, common problem with thumpers, causes stumble and runs rich. (black smoke = rich) Check oil level, they had stator out so they had to drain oil, possibly overfilled, but that would be white smoke... dunno, just throwing it out there, check al the simple stuff How does it run? Good power? maybe something stupid like stuck (dislocated) choke cable?
