Boring out a CN250
 

I have a Roketa GK-19 with a CN250 in it and the power isn't enough so i was thinking about just boring out the Cylinder block to a bigger cc. My dad Owns a CNC machine shop and we can do the boring ourselves but the only problem would be to find a bigger piston and so on. Is it easy to find the parts i need And where would i go for them? Thanks.

they can be found on ebay, alot of people run those and have good luck, you REALLY have to check the ring end gap, and piston to wall clearance.

there are also cams, ported heads for it also

Can't wait to see how this turns out.

Yeah i hope this up's the speed a bit.

Cam or head would give more bang for the buck. That little 15-20cc you gain are'nt gonna do as much

The one im looking at on ebay will put me up to 300cc.

No, it's called a 300 but is really about a 275 or something if I remember correct.

ok im wrong then.

Well I guess you could be right, but I know at least 6 guy's with a 300bb and they all say it's under 300 by a good bit