m3thoor Posted February 25, 2004 Report Share Posted February 25, 2004 Iam changing my piston size frome 66 to 68mm do ineed to change the main jet ? if i do .. should igo for richer or less ? Quote Link to comment Share on other sites More sharing options...
erbilabuc Posted February 25, 2004 Report Share Posted February 25, 2004 Iam changing my piston size frome 66 to 68mm do ineed to change the main jet ?if i do .. should igo for richer or less ? are you changing piston for performance or for rebuild? going to 68mm isnt really going to do much so I dont really think it will afect your jetting at all. Quote Link to comment Share on other sites More sharing options...
m3thoor Posted February 25, 2004 Author Report Share Posted February 25, 2004 am changing it for performance Quote Link to comment Share on other sites More sharing options...
erbilabuc Posted February 25, 2004 Report Share Posted February 25, 2004 you need to rethink your strategy because all you are doing is premature wear to your cylinders bore life. Look into stroker cranks Quote Link to comment Share on other sites More sharing options...
spoin39 Posted February 25, 2004 Report Share Posted February 25, 2004 I agree, boring the cylinder does nothing to the power, just wears out faster! Quote Link to comment Share on other sites More sharing options...
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