Advice needed for storing EFI extended long term - - Arctic Cat Forum
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post #1 of 4 Old 03-21-2019, 04:27 PM Thread Starter
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Sled: 2001 ZR600 EFI, 2000 ZR500 EFI
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Advice needed for storing EFI extended long term

Hello everyone!

I will be deploying overseas towards the end of this summer for a year and I am wondering how I should prep my two snowmobiles for long term storage? (Approx 22-24 months before I'll be riding again) They are both EFI's, so my main concern is fuel in the tank going bad, but if I remove it all I'm concerned about the seals drying out on the fuel pump. I typically fog the motors when I summerize them each year which I plan to do again, but what recommendations can you help me with? Do I keep the gas tank full or empty? Fuel additive? Remove drive belts? Etc..

I've summerized in the past many times, but never for something this long. Being overseas, I can't start them up periodically like I prefer to do. They will be stored inside a cold storage shed almost 2 years untouched :-(

Thanks for any advice!
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post #2 of 4 Old 03-21-2019, 11:36 PM
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Sled: 2000 T-Cat LE -- 2002 T-Cat
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On my carb sleds of your years I mostly drain the fuel add stabilizer run for a bit and manually empty the float bowls.
I don't think stabilizer would last that long, maybe you could try some Stihl(or other) chain saw fuel oil mix. Good for 5 years closed 2 years open.

Other then fuel I would do these things.

run engine spraying engine preservative into intake, maybe with previous mentioned stihl product.

Add straight 30 oil to the cylinders and pull over a few times, replace plugs.
Remove belt, use fluid film on clutches, clean off sheaves before use out of storage.
Use a light spray of fluid film in the entire engine bay
Use fluid film on shock towers, and all ball joints, steering bushings.

Grease all fittings and use fluid film on entire skid frame
Loosen track
lift rear off ground, lift front off ground and block under center pan.
rag in exhaust outlet

Fluid film is an excellent product, research it.

~~~Keep The Rubber Side Down!~~
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post #3 of 4 Old 03-21-2019, 11:36 PM
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I would fog them, fill the tanks with zero-ethanol with stabilizer, remove belts, lift tracks off ground. Cover them. I might throw bounce around it and in the airbox if mice are a concern.

I never, ever start mine in the off season. Not being able to run them to operating temp just introduces moisture.
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post #4 of 4 Old 03-24-2019, 09:49 AM
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Before you fog it mix some Sta-Bil in a 3/4 full tank of fuel, that way it will run in the engine and go in all the injectors and lines, fog it down till it quits. Then siphon it down and spray some engine fogger in the tank real good and quick close the cap so it traps all that goo and fog in there. This is my kind of cosmoline method. Take the drive belt off, And spray the clutches with WD-40, all those steel pins in there can rust, the clutch faces can corrode. Lift the back off the ground and loosen the track. Take the hood off and tape up the intakes and tape shut the exhaust can to prevent critters from getting a free rent apartment in your sled. Put moth balls and dryer sheets all over the place to keep the critters away. Get some cedar chips or scrap cedar wood and dump it all under the track after it's in the air and leave it hang. The cedar chips will keep some moisture away. Put the skis on a couple of 2x 4's, the carbides will rust stain your floor. Cover them with a bed sheet, preferably white with no dye's, not plastic, that doesn't breath.

And have a good trip.

Owning a Thundercat is like having a totally hot wife..... All of your friends want to see it, feel it and check it out..... They all want to know what it is like to ride it, but if they only knew how much time and money it takes to keep one up, they would call you a fool!

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