How to Winterize Jet Skis for Storage - 1996 Yamaha Waverunner 

Hey, thank you! Not many folks appreciate the 90’s era style anymore. It seems like Ski-Doo set the norm for the newer styling.

Thanks for the comment! Nope, no crankcase oil. It’s all lubricated by the 2-stroke oil in the gas.

Truth

Crazy, as I've used this stuff in my '63 Resorter (327 V-8) for more than 15 years. It is true that RV anti-freeze should not be diluted with water, but some water in the pipes when this is done is no problem. In fact, that little bit of water is WHY you would do this. I doub't it's needed on a jetski, but it won't do any harm.

You're a Weiner. That pink stuff is designed to go through the engine to keep the engine block from freezing.

Hey Nick Cortoz- it’s cool that you have the same ski! There aren’t many of us around! Regarding the funnel idea- absolutely fine. I have actually done that method too. Pulling the battery isn’t a must, but it would be good to make sure it is fully charged before it sits all winter. I stored these two in a car port last winter, which was great for keeping snow off. With prior jet skis, I built a little wooden support in the middle of my double trailer that could support a big tarp. It sort of made a teepee over the skis. Not great, but it did the job. Hopefully I can get the car port cleared out enough to use it again this winter. Good luck, man!

@@NashwaukSteve thanks for the info! I’m trying to winterize mine now but it doesn’t have the hose for the antifreeze. Was yours modified?

Hmmm. I don’t think so, but I’m not 100% on that. However, all 4 90’s jet skis I’ve had have had a flush line. I think it’s factory so they can be flushed of salt water if used that way. Maybe it was capped on your machine?

Hi Matt- I’d say probably not. I admit it may be overkill, but where I live I don’t want to take any chances with any water trapped in the engine. I’m on a past ski, I didn’t rev it well and it blew the lower gaskets out when the water froze. I’m extra cautious now.

Having the block empty is best imho, so I try to blow it all out. But if anything remains trapped, at least i know it’s antifreeze and not water. That’s why. Necessary, maybe not.

​@@NashwaukSteve thanks a lot for taking the time to answer!!

Maybe so. The liquid should all blow out by running the throttle with the ski tipped back. I’m just being extra cautious, as I did blow out some gaskets due to freezing in an old Polaris ski. It’s a $4 insurance policy. Thanks for the feedback!

it has a complete point. just stick to the street buddy