About
About
High-compression, reuseable thin copper cylinder gasket. Fits Chung Yang GP420 / GP460 engines. Copper gasket is .005" thick - stock gasket is .020" thick. Installing this gasket reduces the squish clearance in your engine - usually the easiest way to increase power and reliability of a small 2-stroke engine. You should experience a noticable improvement in low end torque and throttle response as well as slightly increased top end RPMs. DDM recommends using 93 octane or higher fuel after installing this gasket.