I just bought an 02 ZR800 EFI a month ago.. I have been meaning to give it a cleanup and put it away for the summer.. I was going to fog it but my friend told me that I shouldn't fog it because it is EFI and that instead I should just use fuel stabilizer and start it once a month and run it up to operating temperature. I have never owned an EFI sled before..

What does everyone here do?

-R.

No problem fogging an EFI.

Been told number one reason for problems at the beginning of season, is sleds have been run regularly during off season, resulting in accumulation of moisture in the crank case. Fog'em and forget'em. :div20:

I have an 03f7 efi and all i have did to it this year is stabil.But if more people say fog it i guess i should huh.

Put a cover on it and forget about it till the snow flies. Had 5 efi sleds in the past 6 years and all I do is clean them and cover them. It will start like a dream every time come winter

LOL, FOG IT AND SAVE MONEY AND TINE NEXT WINTER !!!!!!!!!

my family has a few efi's and we allways fog them.. it will do no harm

only if not brought up to operating temps, this rids the engine of moisture, small temp fluctuations( 20-40 degree spreads) will lead to moisture accumulation,,,,,,,,,,,,,,c-note

i use stabil and run it once or twice a month for about 10 min. never had a problem and got my smoke fix to boot!

My question then would be. How long at operating temperature would it take to rid the case and pipe/can of the moisture you just created? You would also need to be sure it didn't overheat in that amount of time.

My .02 or .03 at this point.

see crazy cats post ^^^^^^^^^^ 10m minutes will not overheat it, clear out the engine while up on stand too, you'll be good to go :cn:

I run mine at least 20 min, and rev it a couple of times in between, so for no problems. :div20:

Well I tried to fog this thing 2 months ago but the airbox was a real pain with the efi box and all.. I figured I would just leave it, put in some stabilizer and start it once a month.. So I went to start it on Sunday.. Fairly hot day.. let it idle for awhile walked away and came back later.. The temp light was on! I gave it a quick blip on the throttle and shut it down.. There was a little puddle of coolant underneath.. I am hoping I didn't do any damage.. I think I will have another look at that airbox and fog it! This running it once a month is a real pain in the a$$!

-R.

Been doing it for 30 years never had a tear down yet, It must have been a warm day, I just started mine a little while ago and they ran for 20-25 min, never saw temp light come on doing this, I also rev them up a few times during this time, still think it's the best way, IMO.

To fog or not to fog has nothing to do with EFI or carb - The people that dont fog and dont start it up are taking a chance on corrosion in the bearings of the motor. Overheating or not heating enough is one of the risks of starting it once a month. Obviously if the sled is stored in super dry conditions without a lot of temp fluctuations your risk of corrosion is much less than if it is stored in a barn with a damp floor.

You can pull the airbox back or take the top cover off to fog it.

I also only start on days that are cooler.

i think you should maybe stay with you sled while it's running and you may have a bigger problem if your sled leaked out coolant. if you don't know how to run your sled up to operating temp with out wrecking anything than i guess stabilezer is the way to go for you. it really isn't that hard to do.

I know I have yamahas, but sleds are sleds and I used this ritual on my cats as well. I have practiced this same ritual for years.

First put stabilizer in the tank and slosh it around.

Start her up and let it get up to operating temp, then shut it down. (Please don't walk away from a running sled, your just looking for problems by doing that.)

Take the airbox off.

Shut the fuel off or crimp the gas line if you don't have a shut off (a rag between the pliers so you don't damage the gas -line)

Start her back up

Rev her up a bit and spray a little bit of fogging oil in the both cylinders, not enough to choke her out, just enough to get her to sputter

Rev it up again, then when she's almost ready to die on her own, blast the fluid in both cylinders so she stalls out on her own.

Leave the gas off, and put the air box back on

Take the plugs out and spray some fogging oil down the cylinders, then pull the motor over by hand a few cranks (make sure the kill is on as you don't want the thing to start again), put the plugs back in.

Put a rag in the pipe/s

Place a bag of mothballs in the engine compartment

Take the belt off

Wax her up, grease the suspension, cover her back up and say goodnight.

I have followed this same procedure for year and have never had a problem. It will be a bit smokey when you first start it up but that's a good thing.

I'm not sold on the starting it up every month, so I stick to this.

Yammarules

I don't see fogging as being a problem. However, don't drain the fuel tank before storing. I tried that one year and had the dickens of a time getting the thing fired the following fall. Fog away, but just add fuel to the stabilizer to the gas before putting her to bed.

wont not fogging the motor cause rust in the bores and when started later scuff the rings a bit???

Most sleds use Nicasil plated cylinders now, which don't rust. The purpose of fogging is to mainly to protect the crank bearings, not the cylinder. If you have regular cast iron bores, or rings that can rust, then pouring some oil down the plug hole and pulling it over will protect those.

But yeah, not fogging can cause rust on the bearings, and it might not seize the following year, but it might cause premature wear on those bearings. I've torn down a lot of sled engines, and you can almost always tell the people who fogged from the ones who just park it.

fog and add stable if you gonna leave gas in the tank leave a half to full tank stores better in quanity or just empty the dam thing thats the best if you got a carb sled make sure to empty the bowls