1973 Honda SL350K3 Engine Parts

First establish the cause of the poor compression. Have the cylinders and other relevant engine components assessed, then buy the parts required by that diagnosis rather than assuming a piston kit is the answer.

Use the identification and condition of the installed engine when checking the kit’s application. The motorcycle’s year alone cannot confirm what engine or piston size is now fitted, especially after earlier repairs.

Order two correctly sized kits when replacing both pistons. Each kit contains one piston, its rings, pin and clips. Keep the separate gasket and machining requirements on the repairer’s wider parts list.