Base gasket thickness vs. power output?

[KDXfile]

Is it possible to adjust the base gasket thickness on a 2-stroke 250 to reduce the power output across the board? If so, would you go thicker or thinner? My instinct says that a thicker base gasket would lower compression and reduce power. But, I'm not sure how port timing comes into play.
Anybody have any experience or insight with this idea?
Thanks.

 

[nikki]

The theory is that a thinner base gasket (like Cometic's special ones) will help raise compression and also lower the ports on the cylinder - therefore the power will come on sooner and stronger. By this logic, I would guess that a thicker base gasket wil reduce the compression and tame things a little bit, too.

 

[David Trustrum]

A thicker or thinner head gasket would be less confusing as eliminates the port height change.

Of course some bikes are o-ringed. Try retarding the timing a bit which should lessen the hit of the power & is easily reversible. Raising the gearing somewhat may have a similar effect.

 

[cr125_king]

I put a thinner base gasket on my CR250 last summer when i put in a new top-end. It was a noticable difference in bottom end power. I'd do it again to my next bike too. It's a cheap way to gain some bottom end if ya put a thinner one on.:cool:

 

[Tulio]

Mark, My riding partner is a AA scrambles rider and a GasGas 250ec owner, and he prefers the thicker base gaskets because of the smoother power they make compared to the thin gaskets.