cr cyls?

[woodsracer144]

hey does a cr 250r cyl work on a trx? ftz does it... how do they use the power valve?
thanks

[k265r]

they dont use the power valve it has a block off plate where the power valve goes.

[woodsracer144]

whats better about it then?

[86 Quad R]

the port configuration from factory is better overall than what the trx was. and with the powervalve removed it is better suited for dune/drag scene. once dialed in, they actually make descent power.

[Honda 250r 001]

nykasil bore and better cooling. Pistons are easier to find and can be found cheaper.

[woodsracer144]

Any way you could use the powervalve? On like a 91 style

[Honda 250r 001]

nope, they are mechanical, and its barely possible without major case modifications. i have heard of 1 person doing that, and it didnt even work that well.

[woodsracer144]

The pv in a Duncan or something like that runs off a spring right? Any way to make the cr run with a spring?

[Honda 250r 001]

nope, you have got to have pressure to open the powervalve, from the exhaust. and just to let you know, the duncan pv does NOT have a spring in it. Ive got a cylinder setting on the shelf.

[woodsracer144]

Well I've never owned one I thought the style we or most of us run has a
Spring... Wanna sell you powervalve on the shelf? Pm a price