I can't comment on what JD has recommended as I have an aftermarket Mikuni installed on mine. It may be true.
Curious though, if you keep cleaning your carb, what are you finding inside it?
Lastly, I run .003 on the intake valve and .005 on the exhaust for valve clearances.
__________________
My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
|