1991 merc90 main jet size

oldtruckface

Seaman Apprentice
Joined
Apr 25, 2008
Messages
33
Hello I have this motor that I have no history on.While rebuilding the carbs
I noted that the thenumber stamped on the carbs is wme33 yet in my
book it says for my engine wme10 is the correct carb.I checked the
main jets and they are .066 yet in the book it specifies .072,maybe this motor
was from a high elevation.The vent jet is .094 like it says in the book.
My question is are these carbs from a different motor,and should I change
to the larger .072 jets .The motor runs great up to 4000rpms then bogs
after a few seconds at 5000rpms.thank you very much.
 
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