25 HP Mercury Idling Issue

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BamaMercury

Recruit
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Jan 12, 2012
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I have a 1997 25,:rolleyes: HP Mercury and only hits on bottom cylinder when idling, runs great at WOT. The idling jet is seated yet it still seems to be flooding. It doesn't appear that the float is too high since you cannot over-flow it by pumping the bulb. I rebuilt carb, put in new needle valve and seat. Compression is good and equal on both cylinders. Thanks for any suggestions.
 

1nebel0

Chief Petty Officer
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Nov 28, 2005
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512
Re: 25 HP Mercury Idling Issue

I will say that it is the float level...if the needle was replaced has to be float when running.. only thing you are proving to me is that the needle is staying closed when pumping the ball..take it apart and lower the float...you can't run it with the needle turned to close...If it runs wot then it is not electrical and you say it's flooding so has to be float...my 2 cents...
 
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