Yamaha F100B F100C Outboards Factory Service Manual, Page 90Get this manual
Fuel system
4Turn the throttle stop screw in direction or until the specified engine idle speed is obtained
Adjusting the pilot screw
1Start the engine and warm it up for minutes to check the stability of the engineAdjust the pilot screw if necessary2Attach the special service tool to hightension cord #1 1
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