1968 Evinrude Speedifour, Starflite 85HP Service Repair Manual P/N 4486, Page 40Get this manual

1968 Evinrude Speedifour, Starflite 85HP Service Repair Manual P/N 4486, Page 40

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powerIn two-cycle engine, igl1ition of the fuelair mixture occurs as the piston reaches tlle top of each strokeThe explosion drives the piston downwardToward the end of the downward stroke, ports whic

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