Long time i try to found my caburator problem!
I have
Kymco People 50S 4T with a 72cc kit, 6G rollers, original air box and a Tecno exhaust.
My valve are set at .003 Intake and Exhaust. I play with the mix air screw, now is at 1 1\2, my idle is good.
The Pilot jet #35 and a main jet #90 but my spark plug is always dark black (too Rich).
I try a main jet #85, the spark plug look better (lite tan brown) and top speed is around 43~45 mph on the speedo.
Normally we suppose to use main jet #90 or more with a 72cc kit, no?
Plus i always have a little hesitation when I restart after a stop(ruling) or if i slowing down and re-accelerate!?Is it possible is the choke always on and it make always rich!?Thank's for help!