oil in the exhaust

[granto]

I just started my 2012 assault with 900 miles on it for the first time this year and it smoked really bad. I let it warm up and took out for a couple minutes and when i pulled back into my shop there was a pretty good size oil puddle on the floor where it was running. Seemed to clear up after my ride just wondering why there was so much oil in the exhaust.

 

[CHOP]

They put oil in the gas tank for break in..

 

[granto]

its a 2012 assault i have 900 miles on it so no oil in the tank

 

[EASY]

I heard another guy say the same thing on here, they were saying that his machine did the same thing( might be caused by a passing oil valve ) another guy said the same thing happened to him and he ran it once a month during the off season a it quit !!!!!! kinda weird ??

 

[Zrider]

Granto:

Open your right side panel and reach your hand in and place it under the Y-pipe where it connects to the exhaust pipe. You'll probably get a black hand full of burnt oil/gas residue. Also look at the belly pan. I'll bet you'll have a black mess all over the pan. When you first start up the sled, it will puke all that black crap until things get hot and expand.

Take your hood off and pull your exhaust pipe away from the Y-pipe and run a bead of 598 high temp black sealant around the donut ring and also on the inside of the exhaust pipe. Let it sit overnight and you should be good to go. Also, re-route the black hose running from your exhaust valve solenoid. Sometimes, that hose will puke some black crap. You'll need to add a section of hose.

I did this fix to my '11 Pro and just did it to my new '13. Got tired of always having to clean up the belly pan.

Hope this helps.

 

[mickyd32]

I posted about the same issue a few months ago. It was on my dads sled. He ran it a few times and it stopped

 

[AKSNOWRIDER]

it is more or less normal, the oil line check valves are allowing the oil in the lines to drain into the crankcase when its parked for long periods..once its fired up it takes a bit to get the excess oil out of the motor..it wont hurt it, but check the oil lines and make sure none have an air buble trapped in them now(if so, add a pint of oil to the first tank, and ride it easy till you verify the bubles are gone)....

 

[Oregonsledder]

I suspect another cause for this, is off season starting and running a short time. Under normal conditions, the sled is started and ridden and any oil build up is burnt before it can accumulate to any real volume. In summer and fall... I want to hear it and smell it mode (we have all been there), the engine and more importantly the exhaust system doesn’t get hot enough to burn off the accumulation. Every time it is “short cycled” in this way more oil builds up and then it leaks past the donut. As Zrider said a good high temp RTV will help reduce the chance for a leak, but keeping the oil from accumulating is also a contributor. IMHO.

 

[RockyMtn.Kris]

it is more or less normal, the oil line check valves are allowing the oil in the lines to drain into the crankcase when its parked for long periods..once its fired up it takes a bit to get the excess oil out of the motor..it wont hurt it, but check the oil lines and make sure none have an air buble trapped in them now(if so, add a pint of oil to the first tank, and ride it easy till you verify the bubles are gone)....

I agree, Ive seen this on a few sleds too. My M1000 used to do it pretty bad sitting over the summer. Ive got a Dragon sitting in the garage with a puddle under it now. I wouldnt be too worried

 

[Merlin]

What I found with mine...............

I just started my 2012 assault with 900 miles on it for the first time this year and it smoked really bad. I let it warm up and took out for a couple minutes and when i pulled back into my shop there was a pretty good size oil puddle on the floor where it was running. Seemed to clear up after my ride just wondering why there was so much oil in the exhaust.

granto,


My '11 displayed the same symptoms at the first start up of the season.............

I used a hand operated vacuum pump to test each of the oil injection check valves separately & found the check valve for the PTO bearing wasn't sealing, all other valves held 100%............

I also removed the injection pump and let it hang with a clean rag under it for a couple of days to see if there was any seepage from the input shaft - no leakage was apparent............


I will be replacing the injection check valve for the PTO bearing but won't really won't know the results until the sled has sat for an extended period of time..............


Hope this helps,


Glen

 

[Bocephus]

i think this is common to 2 stroke motors when they sit in the off season and get started every now and then. i started my M8 about a half dozen times over the summer, let it idle for a couple min, snapped the flipper a couple times, and shut it down. now that riding season is right around the corner i have been doing some PM servicing on it.....when i start it up on my sled stand its blowing oil like crazy. i have white skis, and the rear of the right ski is black as the ace of spades.

all cant disagree with any of the above comments, but dont let the oil issue get to you UNLESS it continues to happen after you have some time in the snow this year