In Reply to: Evinrude 48SPL won't idle and surges at half speed posted by bkharley on September 09, 2002 at 11:34:54:
What you mention in your message leads me to believe that you have gummed up main jets in carbs. When you put your hand over the carbs it creates the same condition as when the choke is on. It cuts the air and the motor is running really rich on almost pure gas.This indicates a lean cond. most commonly caused by stopped up main jets. or improper float settings. or just a mal adjusted carb. I'd bet on the stopped up mains in this case.
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