Mercusier 1988 4.3 v6 engine cuts off at speed

paceboater

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May 18, 2013
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2
Hi all need some help my 1988 18 Ft Searay was runing great after a tune up and carburator overhaul.
Today the engine slows down when I go over 3,000 rpm and stalls. It restarts and will run again at lower rpm but will cut off when I raise th rpms It finaly would not restat and had to get towed in. could this be a problem with the igntion module .I will ceck for spark tomorrow in the day light.
 

paceboater

Recruit
Joined
May 18, 2013
Messages
2
Re: Mercusier 1988 4.3 v6 engine cuts off at speed

yes change all the filters has new fuel pump, and I check this morning i do have spark and it started up on the trailer ok??
I don't know where to go now just have to have it happen again so I can do some testing again. Anyone have anyideas please let me know thanks
 
Joined
Jun 17, 2012
Messages
940
Re: Mercusier 1988 4.3 v6 engine cuts off at speed

Symptoms indicate a fuel problem, not ignition. I would suspect that carb "overhaul". May need to be overhauled again :(
 
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