banshee1911 Posted February 23, 2013 Report Share Posted February 23, 2013 I have a motor that was told would be a 421cc motor. When i looked at it when i got home things did't look right so i took it apart and found out i had a stock crank new brgs.115mm rod with a blaster 0.100 over piston. What i ended up with was. stock crank and new brgs. 115mm rod blaster piston 0.100 over Clyinders ported drag port. not what i wanted 371cc motor not what i wanted what i ordered was a 4mill motor but the builder talked me into a 4mill with a blaster piston you end up with is a 421cc motor. I have 34mm carbs I don't have a idea of what to start with main jet or the pilot jet CAN ANYBODY HELP ME!!!!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted February 23, 2013 Report Share Posted February 23, 2013 stock crank and new brgs. 115mm rod blaster piston 0.100 over Clyinders ported drag port. not what i wanted 371cc motor not what i wanted what i ordered was a 4mill motor but the builder talked me into a 4mill with a blaster piston you end up with is a 421cc motor. So you paid for this but you got that?? I would ship the thing back and tell them to give me what I paid for Quote Link to comment Share on other sites More sharing options...
BANSHEE HP Posted February 23, 2013 Report Share Posted February 23, 2013 blaster pistons stop at .090 wiseco 573mo6825 Quote Link to comment Share on other sites More sharing options...
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