evinrude v4 90hp 2 scored cylinders

emmo1210

Seaman
Joined
Oct 8, 2009
Messages
57
Hi guys,

Just stripped my engine down and found that the 2 bottom cylinders (as the engines sits) were quite badly scored but the 2 top ones were fine.

Im guessing that this rules out the VRO pump? is it likely to be the bottom carb at fault or am i way off the mark?

Thanks for any help

emmo1210
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,589
Re: evinrude v4 90hp 2 scored cylinders

Your on the right track!!! Check for debris in the high speed jets or under inlet needle that restrict fuel flow.
 

HybridMX6

Senior Chief Petty Officer
Joined
Oct 22, 2008
Messages
676
Re: evinrude v4 90hp 2 scored cylinders

Agreed. INspect that lower carb very well. Clean/rebuild both carbs anyways, just be sure to check that bottom one especially well.
 

emmo1210

Seaman
Joined
Oct 8, 2009
Messages
57
Re: evinrude v4 90hp 2 scored cylinders

Much appreciated guys,

ill take an inspection of the carb and post back my findings.
 
Top