2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 289Get this manual

2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 289

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2) AUTOMATIC DECOMPRESSION DEVICE When the starter rope is pulled for cranking the engine, the weight arm pushes up the exhaust valve to delay the timing to closeTherefore, the compression stroke beco