425 Magnum intermitent problem
#1
425 Magnum intermitent problem
I have a 1996 Magnum 425 that runs great except for some sporadic rough, missing. There does not really seem to be any rhyme or reason to when it acts up either. It typically seems to happen while just cruising down a trail at about 25mph or so (mid rpm) and just start missing. It acts like it suddenly got very rich mixture wise, or like the spark plug is fouling. It will do this for like maybe 10 minutes or so and then just clear up again. Once it decides to start missing, it does that at ALL RPMs. It will idle rough, and rev out slow and rough as if its almost flooded. I have pressed the override button on the handle bar to see if it has anything to do with the rev limiter, but that does not help. Not sure if there is a ground wire coming off somewhere, or if the rev limiter is deciding to kick in whenever it wants. Also, when it acts up, it smokes pretty bad too, as if its getting too much gas, or not burning what its getting. It is jetted correct for this altitude also.
Thanks for any suggestions you might have.
Thanks for any suggestions you might have.
#2
Quad Patrol
Don't let the hp numbers fool you. Its all in how you get it to the ground. Clutching clutching clutching!
Don't let the hp numbers fool you. Its all in how you get it to the ground. Clutching clutching clutching!
#6
#7
425 Magnum intermitent problem
Took off the cover of the ETC / throttle area. It was perfectly clean in there and the micro switch seemed to be operating perfectly. So, the ETC is not the problem. I am going to go look at the carb again. Anyone know what the float level height should be set to?
Trending Topics
#8
#9
#10
425 Magnum intermitent problem
I will check, but I am 99% sure it's OK. There is plenty of resistance so that I don't think it is backing out. Also, the problem only occurs for a short then will usually go away. I would think if the mixture screw was backing out it would be bad until I tightened it again.