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jetting help carb

  1. having a problem with the piston melting any clue??

    Engine and Transmission
    I have a 1987 trx250r thats ported by SCT its 68.5 mm bore with the 86 piston ct mid pipe force v reeds cool head 22cc dome oversize radiator and inline cooler a trx head gasket spacer plate 38mm air striker carb ESR airbox eliminator kit stock crank. Its been checked for vaccum leaks and all...
  2. Jetting for 2 stroke idiot

    Intake and Fuel
    Hello, I recently bought a 89 250R, it has a new wiseco .050 over piston, paul turner "race pipe" didn't have a trx number on it. boyesen carbon fiber reeds/cage, 32:1 fuel mixture 93 octane with honda two stroke oil in stock 34mm pj carb... when i first got it a few weeks ago it was breaking...
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