2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 108Get this manual

2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 108

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FUEL SYSTEM CARBURETOR OPERATION

FUEL +AIR (MIXTURE)

As the thottle valve is opened gradually, air flowing through the thottle increases in propotion to the valve opening ang

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