91 Evinrude 100HP poss carb issue?

MichiganOutlaw

Recruit
Joined
Aug 26, 2010
Messages
2
Tested a 91 Four Winns with Evinrude 100HP V4 today. Motor seemed to run fine, however, it was slow out of the hole and the boat didn't get up over 30mph. The boat is a 91 Four Winns 170 Freedom. My friend, who was with to help test it out (he knows much more than me) said the RPM's were also running a little low with it wide open.

The boat has not been used for the past two years, and it has been kept inside. I'm guessing the carbs need to cleaned, but is there anything else that would cause the engine to be lacking some guts?
 

R1racer

Petty Officer 3rd Class
Joined
Jul 7, 2009
Messages
83
Re: 91 Evinrude 100HP poss carb issue?

2 stroke need good fuel supply and good spark . You got the 2 working together you end up with workhorse .. It would be my guess that Carbs got to be cleaned , New tune up , Fresh gas she will be ok, Unless the owner know something that he want share with you .

Also before you buy it get a compression checked ..Good luck
 

ondarvr

Supreme Mariner
Joined
Apr 6, 2005
Messages
11,527
Re: 91 Evinrude 100HP poss carb issue?

At this point there's no way to say what the problem is, it could be dirty carbs, low compression, waterlogged foam, or just the wrong prop.

You'll need to do more checking and supply more info for a good answer.
 
Top