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Old 07-01-2012, 07:38 AM
  #27  
ratballs26
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Default RE: tuning the carb and pipe

hi evereone, i was hoping someone can help me here, i have a 56 apache with a 26cc stock zenoah, it has a 644 carb and a 3 inch 90 degree stianless hedder with a speedmaster 2 1/4 inch aluminum band pipe, i have not been able to get the rpm`s up on her, i started to tune the pipe at 13 1/2 inches inward to almost 12 1/2 inches with no luck, the engine is new carb is new plug is new, stinger drive is adjusted up for rpm, and i am running gulf full syntec oil, everything seems to be good, is it maybe pipe tune, i would sure apriciate some good input, thanks