zuma jetting with factory exhaust

[hybridrazz]

my friend has a zuma with the 70cc kit,19mm carb,stock airbox,stock exhaust what would be the best jetting for this setup?

[Lennox]

whats the altitude? are you in the mountains of Va?

For near sea level I would guess 80-85. thats where I would start.

[XPS1210]

best I can say... is change the stock exhaust...

Your killing any power potential of the 70cc and carb... with that stock exhaust...


yeah... just a wild guess I'd say in the 80-85 range as well.. with the Leo ZX pipe I have a 95 works perfect...

I tried my stock exhaust while trouble shooting and I had no power... heck it stumbled and stuff... so I probably had to much fuel...

[hybridrazz]

yea the mountains id say around 2500 ft since i leave close to the mountain and its 3400ft so the 80 to 85 would still be good? i think im getting a evo pipe so ill sell my friend my leo ive been telling him the same thing about the pipe.