2014 XF 7000 oil bled out

Hey. So after a few days of riding up north, I trailered the sled home. The next day I warned the sled up to proper temp and drove it off the trailer to park it in the garage. By the time I got to the garage (15 seconds of riding), the oil light was on and a huge puddle of oil formed under the sled. Must’ve been at least 3-4 litres. What a mess lol.

The riding we did was in a lot of fresh new snow so the sled was packed with snow/ice under the hood I’m sure. I took the hood off and couldn’t see anything obvious for leaks other than around the seam of the airbox. I could also see oil leaking out up high on the outside above the shock. I’ve attached some pics for reference.

Any ideas what happened here? Could there have been some kind of blockage in the airbox? Thanks in advance for any suggestions of what to do.

The seal on the oil tank to the chaincase let go.

RAMSOMAIR said:

The seal on the oil tank to the chaincase let go.

Click to expand...

Posted in another thread. Had my ZR7000 9500 miles dump all it's oil out the airbox. Dealer replaced the separator tank. 12 miles into my first ride oil light on again and oily mess. You think this might be my problem too?

There is an oil vapor separator just above the oil tank. It has a hose that takes crankcase gasses and routes them to the airbox. This separator also functions as a rollover valve and has a ball and spring in it. They have been known to have condensation form in them and freeze up. When they do, they will often push the oil through the separator and into the airbox.

AC and Yamaha addressed this back for 2018 with a revised oil separator. It can be installed on older machines. I’ve done this on my 2015 Viper.

My recommendation is to bring the sled inside to thaw out, top off the oil, clean up the mess, and run it again with the vent line removed from the airbox and routed to a catch bucket (in case it still is pushing the oil so you don’t make another huge mess to clean all over again.) The vent line is the hard tube in the first photo that sort of wraps around the rad cap and goes from the separator to the airbox.

I’d also recommend making sure you have the updated separator, as I recall it was around $75 a couple years ago. The screen shot below is from the 2018 Tech Update Manual. The updated Yam part number is 8JP-E1164-01-00.

SaskRider said:

Hey. So after a few days of riding up north, I trailered the sled home. The next day I warned the sled up to proper temp and drove it off the trailer to park it in the garage. By the time I got to the garage (15 seconds of riding), the oil light was on and a huge puddle of oil formed under the sled. Must’ve been at least 3-4 litres. What a mess lol.

The riding we did was in a lot of fresh new snow so the sled was packed with snow/ice under the hood I’m sure. I took the hood off and couldn’t see anything obvious for leaks other than around the seam of the airbox. I could also see oil leaking out up high on the outside above the shock. I’ve attached some pics for reference.

Any ideas what happened here? Could there have been some kind of blockage in the airbox? Thanks in advance for any suggestions of what to do.

Click to expand...

Don't forget to clean out the air/oil separator as a regular maintenance item or at least ever few years. Take it off and fill the ports up with Isopropyl alcohol shake it around and repeat. You'll be shocked how much crap comes out of that box. When your done blow it out with some shop air and reinstall.

Here are a few slides from the Viper Technical Owners Guide that will help you to understand how the Separator is designed to work.




I believe the oil is being pushed into the airbox when the top left port (where the check ball resides) is blocked. When the happens, the scavenge oil pump in the bottom of the engine creates pressure in the oil tank. That pressure can't vent due to the blocked port so instead, it pushes oil up from the bottom of the oil tank until it fills the separator completely. At that point, the oil goes from the vent line of the separator into the airbox through the hard pipe vent tube.

That has happened to me a few times. I’ve learned to rock the sled pretty good before starting and it knocks the valve loose. Works for me. If the oil does spill out, I use it to do a partial oil change. I top up the tank and I’m ready to go in 10 minutes with clean oil in the oil tank. 18,300 miles on my 2016.