Ski-Doo Snowmobiles Forum banner
1 - 6 of 6 Posts

·
Registered
Joined
·
138 Posts
Discussion Starter · #1 ·
So, I noticed last week on my 2018 850 that anytime I removed the oil reservoir cap, the rear surface of the tank would move outward. It seems like the oil tank builds a vacuum in it and is not vented. When you open the cap it pops back to normal. My buddy picked up a 2020 600R so we checked his after a short ride and it did the same thing.

Anyone see this on their sled? Just doesn't seem right.
 

·
Registered
Joined
·
138 Posts
Discussion Starter · #3 ·
Cap looks fine. Small rubber valve in it. I'm thinking it takes a certain amount of vacuum to actuate it. On another forum I had a response that this is normal. Guy has 3 gen 4's and they all do it.
 

·
Registered
Joined
·
886 Posts
There was some poo's burning down from this a few years back. Northstar performance makes vent kits for the oil tank. His shop is on face book, no web site or HCS .
 
1 - 6 of 6 Posts
Top