[vettenfun]

This is a 2000 SUV with ~100 hrs. The motor was running really rough that we had to tow it in. While at home, one of the spark plugs (the 3rd one) was very hard to remove, and was melted. After I got it out, I could not thread in a new one. I also could see a hole on the piston through the plug hole. More likely a new top end is needed. How easy to do a top end? Do I need to remove the motor from the hull to work on it? Should I replace all 3 pistons or just the bad one? Anyone have or know where I can get a procedure for the job? I guess I will go "premix" after the repair. BTW, the motor can turn over with no issue. Thanks much!

 

[Ernest T]

Much easier to work on if you remove the engine, plus you may want to check to be sure no metal has dropped into the case, and no other damage.

Sounds like maybe an oil line came off? Not a bad idea to go premix.

Not too hard to do yourself. SBT has some guides plus could tell you over the phone what would be involved: SBT Jetski Engines, Parts & Accessories: Installation Guides

Model: SUV -- SBT Jetski Engines, Parts & Accessories:

Good luck!

 

[vettenfun]

Do I need a hoist to remove the engine? Also, is Ebay a good source for a top end kit? Thanks

 

[Ernest T]

I don't think you need a hoist, but you will probably need another body to help lift it out.

Don't know about Ebay as a source, I guess it depends on where it is coming from.

 

[vettenfun]

I have read the engine removal/installation. It looks "easy" . So, I will try to remove the engine from the hull to work on it. With the engine is out, what else do I need to look for, bearings, seals... etc? Also, are there any routine/service components that need to be replaced while the engine is out? Should I do any mods to get better performance? Thanks