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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3873
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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Engine will not start. Cleaned whole fuel system. New high

Customer Question

Engine will not start. Cleaned whole fuel system. New high octane gas. Plugs (3) are all firing. Appears to be not getting gas to the cylinders. Will run while spraying carburetor thru air filter
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
What you are going to need to do is to remove the carbs, take them apart. Get a good quality carb soak from an auto parts store. soak them following package directions. Blow everything lout with compressed air. Reassemble the carbs using new O-rings and needles. After you have installed them back on the engine, you will need a vacuum type gauge to install on the intake runner to adjust the butterflies of the carbs to get them balanced again.

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