83 evinrude compression

fsds123

Petty Officer 2nd Class
Joined
Apr 8, 2003
Messages
142
Checked the compression on my 1983 115hp evinrude and got 130,130,130,116.<br /><br />Starts and runs great. Should I worry about the 116? I bought the motor 3 months ago and this was my first compression check. <br /><br />Thanks
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 83 evinrude compression

Its time to take a peek to see whats going on. Run a can of decarb thru it and see if you get the 116 up. You should have no more than 15 lbs difference between high and low. <br /><br />If the decarb does not bring it back pull the heads and check for a burned / blown head gasket. If the culinders all look good change the gaskets and deflectors.<br /><br />Good luck!
 
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