pinkfloyd4ever Posted July 24, 2008 Share Posted July 24, 2008 Hopefully I can explain this good enough to understand on the above motor. This all started after the opener, on opening day it ran completely fine, the next time I took it out it started doing this mid-trip.Starts fine, idles fine. I put into gear and until I hit 3K RPM it runs real rough, when it hits 3K and above it seems like it is running just fine. Wether the motor is hot or cold it is the same result. I have changed plugs, changed gas, sea foam, cleaned fuel filter. Removed prop just to make sure the bearings were ok and nothing wrapped in there, both fine. So I am at a loss now. All in all it is more of an annoyance but on the other side, I don't know if I am doing any sort of damage to the motor. Any suggestions would be appreciated Link to comment Share on other sites More sharing options...
PETERSONRJ Posted July 25, 2008 Share Posted July 25, 2008 Have you treated it with Yamalube Ring Free? If not try that. Other wise you might have to clean the carbs and/or resink. By the way I have the exact same motor. Mine ran ruff at idle and it had some water in the carbs. Link to comment Share on other sites More sharing options...
pinkfloyd4ever Posted July 25, 2008 Author Share Posted July 25, 2008 I haven't tried the Yamalube. As a weekend project is doing carb cleaning a somewhat easy task for a notch above a novice mechanic? Link to comment Share on other sites More sharing options...
PETERSONRJ Posted July 25, 2008 Share Posted July 25, 2008 Can someone else chim in on this one? I know how to do it, but can't explain. It shouldn't take to long to do. On a different note, the ring free is some pretty spendy stuff. I use it once a year. Just follow the directions on the bottle. Link to comment Share on other sites More sharing options...
boatfixer Posted July 26, 2008 Share Posted July 26, 2008 If you have some basic mechanical skills, you should have no problem. Pay attention when disassembling to where things go, clean carb thoroughly, reassemble. Link to comment Share on other sites More sharing options...
pinkfloyd4ever Posted July 28, 2008 Author Share Posted July 28, 2008 Thanks, haven't got to doing it yet. Link to comment Share on other sites More sharing options...
marine_man Posted July 29, 2008 Share Posted July 29, 2008 Make sure you count the number of turns on each carb to bottom the jets out and reset them to the same spot when you're done. If you don't the synch between the carbs will be out of adjustment and you could have similar symptoms.marine_man Link to comment Share on other sites More sharing options...
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