Top end that will fit a California Motorbikes PK80 bottom end?

[markjs]

So I already got the "power bug". I know an expansion pipe will be a must, but what kind of top end kit might I get, that would up the power some?

Hoping to find something I won't need to do any real porting on to acheive somewhat more power. I don't want to try porting anything until I have a second engine.

I'm sure there's got to be some top end kit that has better port timing or whatever it is, that makes more power? I know a Phantom 85 would require a bigger wrist pin, so that's kind of out, but there has to be something?

 

[DAMIEN1307]

know a Phantom 85 would require a bigger wrist pin, so that's kind of out, but there has to be something?

The Phantom top end would not fit on the bottom end of an 80 in any event...The bottom end of a Phantom is from a YD-100 motor.

 

[markjs]

The Phantom top end would not fit on the bottom end of an 80 in any event...The bottom end of a Phantom is from a YD-100 motor.

Yeah, but is there anything that will fit that would be an upgrade?

 

[DAMIEN1307]

Yeah, but is there anything that will fit that would be an upgrade?

Nothing that I know of that fits what your looking for......

Hoping to find something I won't need to do any real porting on to acheive somewhat more power. I don't want to try porting anything until I have a second engine.

I'm sure there's got to be some top end kit that has better port timing or whatever it is, that makes more power

 

[Chainlube]

Yeah, but is there anything that will fit that would be an upgrade?

If you have a machine shop at your disposal, you could use a jug and piston from a chainsaw. Most saws have a shorter stroke than any CG engines, so an adaptor plate has to be milled out.