My Arctic Cat Whisker is running a little rough ... it pulsates ( with the throttle fully opened ) it revs up but won't sustain or go into second gear. It just starts to rev up to higher rpms for only half a second and then it returns to cruising along in 1st. I'm thinking it could be a top end problem ... incorrect spark (although it starts first pull... maybe a slight misfire ? / or I've heard if you don't use the exact oil for the 2 stroke ? / I'm rebuilding the carb right now...not sure if that 's the problem ?/Tranny ? ) any ideas ?
Please advise,
Please advise,