Merc 90 bogging down.

Scorpion2

Recruit
Joined
Oct 8, 2012
Messages
1
Hi there I have a merc 90 3 cylinder 1996 which I have recently bought.

The engine pulls to 4-5 k but won't pull the boat out the water. So I assumed it was over propped so bought another prop. Still the same. New plugs and primer bulb. Still the same.

But took it out yesterday and tried at wot pressuring the choke / enriched and the boat kept out the water. Couldn't keep it held as it started to choke but if I pulse the choke it pulls very hard and runs like it should.

Thoughts please.
 

pinboy122

Seaman
Joined
Apr 11, 2006
Messages
51
Re: Merc 90 bogging down.

sounds like you need to clean the carbs also check the fuel filter
 
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