'95 Evinrude 90 HP Loss of Power

bassguy92

Recruit
Joined
May 6, 2011
Messages
1
Hey guys,

I'm new to this forum and to repairing outboards, I was hoping a few of you could help me on figuring out the problem of why my '95 Evinrude 90HP does not have the high end speed it did a year ago.

Back then, I it would push my 17.5 ft alumaweld about 60 to 63 mph according to my Lowrance GPS. I accidently had a fuel mixture error where I mixed about 4 gallons of gasoline at twice the normal mixture (big whoops on my part). When I realized what I had done, I drained the fuel tank and put new gasoline with the correct mixture in. I have ran several tanks of gas though the motor since then and now the top speed is in the ball park of 50 mph or so.

I have checked the spark plugs to make sure they were functioning properly and that was not the issue, any other suggestions?
 
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