SLEEVE YZ250

Cylinder Sleeve For 2-Stroke

Engineered specifically for 2-Stroke high-RPM powersports applications

Scavenging, transfer, and exhaust ports come factory pre-profiled to preserve exact original manufacturer timing parameters

Centrifugally spun-cast Chrome-Moly Alloy (200 Brinell hardness) for superior heat dissipation and ring wear life

Supplied semi-finished; must be finish-bored and honed after installation to match the exact clearance specifications of the replacement piston

Inside diameter must be bored and honed to size piston after installation.

Original block has a cast-in sleeve liner in the cylinder. The cylinder must be bored out to accept the new cylinder sleeve. The cast-in liner will be bored completely out of the cylinder. Do not try to push out the cast-in liner, cylinder damage may be the result. For liquid cooled engine.