Boudz Posted November 14, 2011 Report Posted November 14, 2011 Hey guys .. i just bought 115 (4mm) Connecting rods and Pro-X pistons .. ported cylinder , Pro Circuit exhaust , Pro design cooling head with 20cc domes , the question is .. what jets should i use and should i change my exhaust or no? Thanks. Quote
Smokestack Posted November 14, 2011 Report Posted November 14, 2011 If you have stock pipes yes. Really need to change them. Quote
Boudz Posted November 14, 2011 Author Report Posted November 14, 2011 i have pro circuit pipes .. Quote
thomas h. Posted November 15, 2011 Report Posted November 15, 2011 What is your air filter setup and what is you elevation? Stock carbs? Do you mix 40:1? Stock needle? Guessing sea lvl to 1000 and k&n Filter I'd start with 27.5 p. And 290-300 mains Be ready with 30.0 p and 310 mains Quote
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