Unflooding a sled

Dogmeat · Nov 30, 2007

ok what gives?

I've never had any trouble starting this sled at all (1999 700 RMK) ... I had it started several times throughout the summer...

I went to start it a few hours ago, started right up, noticed it was leaking exhaust at the union between the y-pipe and the expansion chamber, so I went to the Polaris dealer and bought new springs and a new flange ...

Put all that on, went to start it, now it won't start? I've never once flooded this sled that I can remember, and I've never had any trouble starting it..

Either way, I pulled the plugs, fine ... wet ....

So I left them out and yanked the cord for awhile hoping to dry out the cylinder.

Started again, 2 pumps on the primer and choke on full ....

can't start.

repeated this with various combinations of prime and choke, still wont start.

what the hell I've never had this much trouble

MacGyver · Nov 30, 2007

Drain the crankcase by taking out the 2 little drain plugs on the bottom front of it.

Dogmeat · Nov 30, 2007

MacGyver said:
Drain the crankcase by taking out the 2 little drain plugs on the bottom front of it.

do you have to pull the motor to do that ?

m7john · Nov 30, 2007

Dogmeat said:
do you have to pull the motor to do that ?

no, just look below your exhaust and you will see 2 maybe 1/4 inch plugs

skibreeze · Nov 30, 2007

I'd try no primer since it was flooded.

Dogmeat · Nov 30, 2007

skibreeze said:
I'd try no primer since it was flooded.

I did, couldn't get that to go either

I'll see if I can find the plugs to drain ....

I8URCAT · Nov 30, 2007

Dont mess with those plugs.

If its not spraying out of the plug hole when you turn it over when the plugs are out, you arent going to get anything out of the drain plugs.

Have a friend pull the rope while you sit on the sled holding the brake and the throttle wide open. If it wont start then try another set of plugs.

To The Pipe · Nov 30, 2007

Once those plugs are wet, it's all over. Dry them with a lighter, away from your sled, or get som fresh ones.
It's probably a dumb question, but have you checked for spark also?

winter brew · Nov 30, 2007

Heat the plugs with a propane torch first.

scufty · Nov 30, 2007

Throttle wide open and pull till your to tired to pull it

Bull · Nov 30, 2007

not a dumb question......make sure you are getting spark. if you are, new plugs or dry as suggested. try pouring spoon of fresh gas in each cylinder. no primer. but make sure you are getting spark.

yammerhammer · Nov 30, 2007

I like take a lighter to the cylinders also. Do not look into the hole while doing this, keep your face away. Put a lighter to the cylinder and slowly turn the engine over until you don't get the "whooop" or a small blue flame anymore.
Put NEW plugs in and go. Do not use the prime or choke to start it.

Mafesto · Nov 30, 2007

Pull it behind a pickup and "drop" the clutch.

triple · Nov 30, 2007

Could be a carb problem. A piece of dirt hanging up a needle and seat will flood an engine pretty quick. Did you do any pre-season work to it?

triple · Nov 30, 2007

I would also pull the plugs in the crankcase. If the case is full of fuel, it's a pain to get it started. I trailered my sled 100 miles with the petcock open and filled the crankcase. Ran way better and started way easier with the crank case empty.

Dogmeat · Nov 30, 2007

To The Pipe said:
Once those plugs are wet, it's all over. Dry them with a lighter, away from your sled, or get som fresh ones.
It's probably a dumb question, but have you checked for spark also?

It's getting spark...

I put a set of dry plugs in, it started right back up, idled for about 2 minutes and died.

Now I can't get it started again.

I'll try to prime it back up, it fires a few times then dies, and wont start again.

I am wondering if I have bad gas or perhaps if the fuel stabilizer I put in there last winter is gumming up the carbs

NWGooser · Nov 30, 2007

One more suggestion. If you have another sled (uses the same plugs), run it and pull the hot plugs. Put them in your sled. Throttle wide open (track up) and pull pull pull. Works best as a two man project.

INDEEP · Nov 30, 2007

Like said above use hot plugs. Also make sure your fuel is fresh.

devilrmk · Nov 30, 2007

Best way to start a flooded motor is with starting fluid. Doesn't make sense to add more fuel to a flooded motor, but it will start after hitting the cylinders with some ether. Try it, freaking amazing.

HIDY · Nov 30, 2007

New Plugs and hold it wide open

Unflooding a sled

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