1972 Johnson 4HP Outboard Motor Service Repair Manual P/N JM-7202, Page 8Get this manual

1972 Johnson 4HP Outboard Motor Service Repair Manual P/N JM-7202, Page 8

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CLEARANCE CHART POWER HEAD Piston ring gap Piston ringgroove Cylinder and piston CrankshaftUpperCenterLower Connecting rodPiston endCrankshaft end LOWER UNIT Weedle ss Standard PinionBushing In Gear C