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Yamaha 4 Stroke 6hp Outboard Issues!

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superflychris

New member
So I went to go sailing for the first time this year, had my outboard down below for six months lying on its side.

When I went to start it, the pull cord stopped as soon as the fly wheel tried to engage. Kept trying and it's loosened a bit, but still super stiff.

I took the top off and can just about turn the fly wheel manually, but very stiff.

I also took the spark plug out and tried pulling. But no difference.

It worked perfectly before we put it away for the season, any ideas??

Here is a video showing the issue:
 
Checked the oil level.----Best to store these motor upright.----If you store them the wrong way .
oil can fill the cylinder and oil does not compress.
 
Hi there - thanks for the replies. I tried sea foam via the plug, over a number of days. Might have loosened up a bit, but not much.

Changed the oil.

Nothing else seems to be working. :(
 
Is it the same when you try rotating the prop by hand (clockwise)?
I'm working on an old Mercury 45 and flywheel wouldn't even budge, so I dropped the lower unit and the pull start freed up. So now it's on to the gearcase...
 
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