Re: 78 50 hp merc flooding

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Posted by Ed Mc. ( on July 04, 2005 at 15:18:23:

In Reply to: 78 50 hp merc flooding posted by brad on July 04, 2005 at 12:36:12:

Check the fuel pump diaphragm for tears/leak. This could dump a lot of fuel into the motor.

You probably need to go thru and check the carb floats, replace the float needles and seats, and re-set the float height.

There are upgraded white plastic replacement floats which are better than the old black or orange ones.

The rubber float needle seats in the carbs get dried up/worn out and leak. Best to replace them since you're having troubles.

Get some good diagrams and repair instructions from this site:

Durafix Aluminum Repair Rod Demo

See Items Repaired With Durafix