How to Winterize Yamaha F9.9 Outboard

A basic step by step guide to winterize a Yamaha 9.9hp outboard motor.
This same information is applicable to any small outboard that has a carburetor. All you need is an aerosol fogging oil, an 8mm combination wrench, and a rag.
The steps to winterize a motor as shown in the video:
1) Run up to operating temperature - approximately 15 minutes
2) Fog motor by spraying the fogging oil down the intake while the motor is running at a fast idle
3) Drain the float bowl on the carburetor
If you have any questions at all or are not comfortable working on the fuel system of your motor please call our service department at 604-273-7544 or book a service appointment on our website at www.galleonmarine.com

[@garycotz563]

Wow cool outboard test rig! Love that air lift! - Thanks for the tips, just what I needed for real... good job!

[@brucek2083]

Funny I found this video, I just bough a used motor from these guys for a great price and then some oil/filters later, their customer service is outstanding.

[@tomarmstrong1846]

Thanks for the video!
Just completed fogging, went slick

[@eamonnocarroll5866]

Excellent video Thanks

[@mattwaters6987]

Great info. Thanks bro. Definitely subbed!

[@billallen7716]

I always drain my lower oil as part of my winterizing to ensure there's no water in it that would freeze

[@anonymouse7074]

Thanks

[@JohnSmith-gm3qm]

Would you be able to do a video on the tank you’re using?

[@hookedonfishing.6021]

Cool video. I'm confused on where to spray the fogging oil.

[@aroundlinemen]

Hi we just got new 9.9 7/22 but it came with (from Yamaha deal) black fuel hose .from tank to engine. Do the black fuel line break down, and clogging up thing over time?
No name on fuel line bulb / hose
Thanks. Great video 🇺🇸

[@GalleonMarineRichmond]

The Yamaha lines are better than most but like all eventually will break down with constant UV exposure. Changing a primer bulb every 5-7 years will ensure no issues.

[@jays1604]

You said you used stabilized fuel. Do you mean you ran it with gas and stabile in it? And your lift is sweet as all hell

[@bug512]

Thanks, how about the cooling system if being stored outdoors in freezing conditions ?

[@GalleonMarineRichmond]

All outboards will drain fully when they're pulled out of the water and left vertically for a few minutes. No need to worry about any pooling water freezing, it's all about the fuel system and fogging.

[@bug512]

@@GalleonMarineRichmond WOW, Thanks for the quick reply.. Question? Why is fogging an outboard so stressed but not so much in other engines that also lay up for either the summer or winter season. Great video...
BTW, I ran my 9.9 out of fuel using non ethanol fuel, think I might still have some fuel left in the carb, will need to drain that. Again... Thank You..

[@GalleonMarineRichmond]

@@bug512 No worries. Fogging is pretty important for any four stoke motor that sits outside.. cars, boats, RV's alike. Two strokes are constantly burning oil so it's less necessary. The whole purpose is to coat the inside of the intake, cylinder wall and exhaust with oil so that they can't build up condensation and eventually rust. I should have mentioned this in the video, but unplugging the fuel line and running it "dry" gets most of the fuel but not all. It just brings the fuel level down to the point where it sucks air... you really should still drain the remainder. Also note: ethanol is not the problem, fuel naturally evaporates and breaks down. A carb is vented to the atmosphere so the fuel can evaporate quickly and the additives remain behind leaving this varnish that easily cloggs idle circuits causing you to need to fully clean it in the spring.

[@bug512]

@@GalleonMarineRichmond Great Information, I did mix a stabilizer in with the fuel, I will grab a wrench and rag and drain the rest.

[@GalleonMarineRichmond]

@@bug512 Oh missed the stabilized part, definitely a good move and probably would do the trick but for what it's worth and the time it takes crack the drain anyway. Cheers!

[@djsimpson87]

Thats it? No draining oil or anything?

[@GalleonMarineRichmond]

As far as simply WINTERIZING or preparing for storage this is all that needs to happen. Each year the motor should be serviced as well which would include an oil change. Most people choose to service when they get winterized, others chose to do it in the spring time.

[@djsimpson87]

@@GalleonMarineRichmond thanks 💯💯