one cyl not firing

[timmyt66]

i have a 1985 175 evinrude i have one cyl not firing all cyl are at 90 psi and the carbs were just rebuilt last week i have all new coils new power paks pulg wires and plugs what else would cause this one cyl not to fire what else should i check?

 

[DJ]

Re: one cyl not firing

Try switching a coil from a cylinder that is firing. Just because they're new doesn't mean they're good.

Also, check grounds.

 

[clemsonfor]

Re: one cyl not firing

make sure floats are adjusted right my motor had one come out of adjustment all of a sudden and i was loosing 1 cyl because is was being flooded by the carb because the float was to high. Just another thought. Because i was checking everything else at fist because i knew i was getting gas in there, just did not realize that it was to much gas. New needle vavle and seat and float corrected the problem though.

-Nate

 

[fireman57]

Re: one cyl not firing

When it is running is it spitting fuel out one of the carbs? If it is take that carb off and look behind it into your reed valves for something sitting in there. Just use a flashlight. If it isn't spitting then do what djohns says.