Hello everyone, so I got this issue that is stumping me.... My bike does this...http://www.youtube.com/watch?v=C7fC44Tsa4k and has all summer.
It's a maxi with a 74 airsal, hpi mini timed at 2.5. Vm20 with a 170-180 main. 17.5 idle. Uni Air filter. Estoril pipe. 17x38 gearing. Screams like a bat outta hell at throttle but does this crap at idle.... I also have a hammer clutch v1. Tried two different cases, all the ranges of idle jet up to 25 I think. There's no external air leaks detected by soaaaaking the gaskets in carb cleaner..... I was thinking maybe my timing is jumping at idle? Or somthing in my clutch is grabbing making me think the idle is fucking up. Also. I never had issues with temperature but today on a short ride it got to 380 rather quickly. Then while putting home it jumped to 450 so I cut the engine and pulled over, then limped home. Any ideas on what to check first? I'm lost.