rebuild/jetting question

frantz65

New Member
Mar 22, 2013
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When rebuilding a engine(bigger bore) is it required to install bigger jet to compensate? (New to rebuilds)
 
No its not, if you just bore it to the next size, nothing changes except the piston size. No power gain unless you have a 240cc kit
 
No its not, if you just bore it to the next size, nothing changes except the piston size. No power gain unless you have a 240cc kit

good call herderp i'll second that because i recently had the same question. mine got bored just .030 over (first rebuild) and i too thought i might have to jet but you dont have to. unless youre getting a big bore 240 kit then you might have to depending on your aftermarket parts and elevation but otherwise you shouldnt even really have to normally on a big bore kit i dont think I:I