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Manuals through 2025 now available!

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LEMON is the spiritual successor to CHARM, I recommend you try it!

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Piston Selection






PISTON SELECTION





The pistons are select fit to each bore. There are three different grades of pistons available; A, B, and C. The piston identification (2) is located in the middle of the block on the right side of the engine. The bore identification starts at the top and reads downward. Bore #1 is at the top and bore #4 is at the bottom.

The piston, rings and rod are serviced as an assembly, after determining what size piston is needed, refer toService and Repair to determine correct rod bearing size.