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1978 440 exciter problems

1K views 0 replies 1 participant last post by  sheppy4x4 
#1 ·
i have a 1978 440 exciter and i'm having problems getting it running right. As it stands now i replaced the engine with another 440 yamaha engine. the sled runs fine and idles but seems like it's only intermitently firing on both cylinders..i've also noticed the clutch is engaging too soon, as soon as i touch the throttle the clutch slams in and the sled bogs til it builds up speed..i know i can solve that problem by replacing the clutch spring BUT i can't get it removed...the main thing is i really want the cylinder problem fixed oh yeah and i've already put a new coil and plugs in it. i know before i blew up the original engine it was a hell of a lot faster. any helpful hints would be greatly appreciated.

Thanx Chris
 
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