SRTchris
11-13-2011, 05:49 PM
Alright, so heres the story.
Bought this quad used, had low miles on it.
Was completly stock upon purchase. But when riding it, it had almost a "fuel cut" kind of going on when going WOT.
Filter was a little dirty. So stuck a KN filter in. Seemed like it helped it out, but it still did this cutting out. Almost like the rev limiter, but would do it randomly. Some times would do it, sometimes it didnt.
Then I bought a HMF slip on exhaust for it. Rejetted it, but still did this cutting out part.
Figured it might have been a coil going bad. Replaced the plug, boot, and coil. Still did it.
Took it to a friend of mine that worked on quads.
He rejetted it, and redid the valves.
Got it back, and rode ALOT better, but in the upper RPM range, it still had a minor cut out. But was 10x better then it was before.
So I took it back to him to check it out again. He suggested to get rid of the KN filter, thinks it might be flowing too much. So I bought a UNI filter. He then rejetted it again back to a 148 main and a 42 pilot.
I have not yet rode it, but he says it still has a minor miss up top, but it is alot better. But he doesnt want to point me in the direction of just spending money and throwing parts at it.
I asked him what he "thinks" it might be. He thinks it may be the clutch slipping in the upper RPM range, making it cut out.
Im lost, any suggestions?
Bought this quad used, had low miles on it.
Was completly stock upon purchase. But when riding it, it had almost a "fuel cut" kind of going on when going WOT.
Filter was a little dirty. So stuck a KN filter in. Seemed like it helped it out, but it still did this cutting out. Almost like the rev limiter, but would do it randomly. Some times would do it, sometimes it didnt.
Then I bought a HMF slip on exhaust for it. Rejetted it, but still did this cutting out part.
Figured it might have been a coil going bad. Replaced the plug, boot, and coil. Still did it.
Took it to a friend of mine that worked on quads.
He rejetted it, and redid the valves.
Got it back, and rode ALOT better, but in the upper RPM range, it still had a minor cut out. But was 10x better then it was before.
So I took it back to him to check it out again. He suggested to get rid of the KN filter, thinks it might be flowing too much. So I bought a UNI filter. He then rejetted it again back to a 148 main and a 42 pilot.
I have not yet rode it, but he says it still has a minor miss up top, but it is alot better. But he doesnt want to point me in the direction of just spending money and throwing parts at it.
I asked him what he "thinks" it might be. He thinks it may be the clutch slipping in the upper RPM range, making it cut out.
Im lost, any suggestions?