Mr Knuckles Posted August 25, 2020 Report Share Posted August 25, 2020 Odd scenario I have a 2001 225 mercury 2 stroke.EFI At full throttle WOT it loses power 3800 to 4000 rpm tops. If I remove the engine cowl it runs like a champ. 5200 to 5400 rpm. Any suggestions I’m all ears. Thank you JT Quote Link to comment Share on other sites More sharing options...
linesider 159 Posted August 25, 2020 Report Share Posted August 25, 2020 Check cowling for air restriction just to be sure. More than likely its an exhaust leak and will need powerhead removed to replace base gasket. Quote Link to comment Share on other sites More sharing options...
brew1891 Posted August 26, 2020 Report Share Posted August 26, 2020 Had similar issue on my VMax. Wouldn’t idle at all with cowling on. Don’t remember how it acted at speed. It was the exhaust tube. On the Yami I just had to remove lower cowling if I remember correctly. Didn’t have to pull power head but not sure on a Merc. Yours sounds slightly different but if no air restriction I’d bet it’s exhaust related Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.