08 suzuki 90 fourstroke questions.

bodogg

Cadet
Joined
Sep 29, 2012
Messages
27
please help,i have a 08 suzuki 90 fourstroke that idles kinda rough and when throttled up it will not go over 4000 rpms. Does anyone know what could be the problem?
 

Bamaman1

Lieutenant Commander
Joined
May 15, 2011
Messages
1,895
Re: 08 suzuki 90 fourstroke questions.

The first thing I ever do when an engine is running rough is put in new spark plugs--$10 investment.

If it's still running rough, have a dealer plug his diagnostic computer into the engine to see if it's throwing a code.

So many problems with modern engines are fuel related--with 90/10 gasoline breaking down due to non-use or age.

The days of the shade tree marine mechanics is over--with modern CAN/BUS outboards.
 

bodogg

Cadet
Joined
Sep 29, 2012
Messages
27
Re: 08 suzuki 90 fourstroke questions.

thanks bamaman1, I took the tank out this morning and chunks fell out that looked like cornflakes,so i cleaned it out and now the motor purrs like a kitten,i overlooked the obvious!
 
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