Piston kit for the Partner 350 chainsaw. Includes a piston with components for replacing a worn cylinder-piston group (the exact contents of the kit are not specified).
The piston needs to be replaced if there is scoring, cracks, a burnt-through crown, worn ring grooves, or excessive clearance in the cylinder. Signs: loss of power, smoky exhaust, hard starting.
It is best to do the work on a cooled engine with the ignition off, and to tighten the fasteners without overtightening, so as not to strip the thread in the body.
