pg short carb tuning question
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pg short carb tuning question
72cc dd50, stock carb rejetted, stock airbox, 26 mm pg pipe. Changing pipe to 28 mm pg short. What adjustments need to be made on carb? Will read plug as I go, but any ideas? Thanks
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Wheelman-111
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Re: pg short carb tuning question
Greetings:
I have never done this specific upgrade. Generally when mounting a pipe that permits higher RPM, the jetting needs to go up a size. 72cc Contesta has a 90 main jet with stock airbox & pipe, would install a 92 if Ms. Wheel-person wanted a Short, then watch RPM and CHT closely.
I have never done this specific upgrade. Generally when mounting a pipe that permits higher RPM, the jetting needs to go up a size. 72cc Contesta has a 90 main jet with stock airbox & pipe, would install a 92 if Ms. Wheel-person wanted a Short, then watch RPM and CHT closely.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH