I need help badly

[shadow746]

Ok so I've had my quad at a shop for the past 4 weeks and they can't find what's rong with it... It breaks up in 3rd gear and up but only when I hit bumps. It's got a new stator and the carbs where checked.. Any ideas?

[AKheathen]

i would replace the plug caps, if you haven't already, and check thee frame ground and other wire connections first. it's probably happening in all gears, just the at 3+ is high enough to feel it better

[madjimmax]

X2 on checking grounds it sounds like a loose wire or ground.

[Larry's Shee]

Hope they aren't charging storage , 4 weeks WTF X-2 on grounds , ALL connections. Also check switches

[shadow746]

Ok I'll check those and hopefully that fixes the problem. I've been bugging out to ride it haha. Just put a minus 2 swinger on and rode it for a day and a half and it started messing up.

[toytech]

check the tors and the parking brake switch could be out of adjustment

[shadow746]

check the tors and the parking brake switch could be out of adjustment

both were removed

[shadow746]

Ok so I need more ideas of what it might be. Would there be a problem with jetting that would be the cause for the sputtering? It has 320 main jets and as cars as performance mods go I have toomey t5 pipes vforce3 reeds uni airfilter with no lid and I think it's bored 30 over. The shop said that my left piston has a little damage to it. So any other ideas?