Hi Jeff, I would check the pilot idle screws on the carbs. I think I started mine 3.5 turns out (can't remember exactly). It made a HUGE difference in how difficult it was to start. As for spark - sounds like the only part you haven't checked/replaced is the plug wires. you may be getting crossfire or too much resistance. You could also have too much resistance from the plug gap being too large. A gap too small will fire a little too early, so check that as well.
If the motor ran before the carb cleaning, I would say that is the culprit. Once you get it started, do a carb sync (search the forum or elsewhere online). Let us know what you find out. - JO On Mar 16, 2011, at 2:37 PM, Jeff wrote: > I have an 83 650 sc, motor locked up so i picked up a 85 motor with > 20k on it put it in and it started right up and ran great! Now it > won't start so I cleaned the carbs, tested the coils, put in new plugs > and tested the pulse gen and everything checs out but I still have > weak spark and it won't start. Although it does fire once and while. > HELP. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
