1991 Pro v 150 dead cylinder

milorlee

Recruit
Joined
May 16, 2010
Messages
1
I was out fishing today and the motor ran great in the morning. When I was heading back in the motor started to bog at WOT and would not go past 4500 RPM. When I got back I checked the plugs and a found a wet plug. I repalced the plugs.

The new plugs did not fix the problem. The same plug that was wet before was also wet with the new plugs.

I switched the coil with another cylinder and the same the plug was wet again after running.

I did notice that after the motor was ran for a while the plug that was wet was considerably coldeer than the other sprk plugs.

(The dead cylinder is #6.)
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,877
Re: 1991 Pro v 150 dead cylinder

As always first check compression and spark on all cylinders.
If that is good then look at fuel.
 
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