I am working on a yami wolverine 350 1997- it starts and idles great with low end power, but turns into a real dog on top end-so far i have tested fuel, ok- rebuilt carb & replaced diaphram slide-checked muffler,not plugged-checked compresion, 117 hot & higher when cold-checked valve clearance, ok-checked timing marks on flywheel & cam sprocket, ok- replaced spark plug & boot-eliminated parking brake rev limiter switch-adjusted clutch-still no good-any help would be VERY MUCH APPRECIATED- THANKS FOR LOOKING-bbw

 

exhaust leaks, cdi? are you sure all the o-rings are in the carb? and did you try raising needle?

 

YES THE 2 O RINGS FOR VACUME FOR DIAPHRAM ARE IN PLACE-1 ON TOP PLASTIC COVER & OTHER ON SIDE-THE EXHAUST PIPE HAS SOME SMALL HOLES AT REAR BUT DOESN'T SEEM LIKE THAT WOULD MAKE THAT BIG OF DIFFERENCE ON A 4 STROKE-I HAVE GIVEN THOUGHT TO THE CDI, BECAUSE I THINK IT CHANGES TIMING CURVE-NO WAY TO TEST IT & VERY BIG$ FOR A NEW 1-THANKS VERY MUCH!-BBW