87 js550 bog, white smoke, clean plugs.

[1natehundred]

so I've been doing a little research on this problem and i'm leaning towards bad crank seals? all symptoms seem to point to it. white smoke, lots of bog, acute onset. I dont think there is an air leak in the fuel lines. ski ran the balls up untill all of a sudden we were getting a lot of white smoke and huge bog. tough to keep ski running. carb has already been rebuilt and ski is all stock. like I said ski ran so good, then all of a sudden this. compression test was good at 120 per side. Oh also inspection hole to stator has some oil in it so this is what I'm thinking.

thoughts?

 

[chief775]

Yup, sounds like you need to replace the seals, also you'll want to pull off the cover and flywheel and clean your stator as well as the inside of the flywheel now.

 

[1natehundred]

Yup tore into it today.


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[chief775]

Yuck! lol. I hope you marked your stator for timing!

 

[1natehundred]

It has factory markings, no?


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[1natehundred]

What would be an acceptable degreaser/cleaner to use on this?


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[chief775]

Brake Clean... Lots of it and no mine didn't have factory timing markings... i marked it using a sharpie and lined it back up.