tapex_07
TY 4 Stroke Master
- Joined
- Feb 15, 2009
- Messages
- 1,160
- Reaction score
- 135
- Points
- 1,038
- Country
- USA
- Snowmobile
- '10 Nytro MTX SE IMPULSE 174x3
'14 Viper XTX SE MPI 159x14x1.25
'07 Apex RTX SC2 MPI 128x1
Why wouldn't they put the check ball/spring on the vent to air box line then? To block the oil from escaping the air/oil box...
Or is the the check ball your referring to directly below the air box outlet? It's tough to tell in the diagram....
Or is the the check ball your referring to directly below the air box outlet? It's tough to tell in the diagram....
Mtnviper
TY 4 Stroke Master
- Joined
- Aug 19, 2003
- Messages
- 1,476
- Reaction score
- 340
- Points
- 1,288
- Location
- Burlington Wa.
- Website
- fourstrokesolutionsllc.com
Why wouldn't they put the check ball/spring on the vent to air box line then? To block the oil from escaping the air/oil box...
Or is the the check ball your referring to directly below the air box outlet? It's tough to tell in the diagram....
The check ball is below the inlet line from the top of the tank.
During normal engine operation there is air escaping out of the top of the oil tank and blowing it down on to the check ball keeping it open. They are not able to move the check ball over to the outlet that goes in to the air box, because the escaping air flow would blow the check ball closed. This in turn would cause the oil tank to over-pressurize.
tapex_07
TY 4 Stroke Master
- Joined
- Feb 15, 2009
- Messages
- 1,160
- Reaction score
- 135
- Points
- 1,038
- Country
- USA
- Snowmobile
- '10 Nytro MTX SE IMPULSE 174x3
'14 Viper XTX SE MPI 159x14x1.25
'07 Apex RTX SC2 MPI 128x1
Thanks for the explanation Mtnviper!
N2DEEP
Veteran
I had this same problem. Do you think moving the oil seperator from directly above the hot exhaust over to the colder clutch side could be the isue ? Vipers with the seperator in the stock location do not have this problem.
Mtnviper
TY 4 Stroke Master
- Joined
- Aug 19, 2003
- Messages
- 1,476
- Reaction score
- 340
- Points
- 1,288
- Location
- Burlington Wa.
- Website
- fourstrokesolutionsllc.com
Thanks for the explanation Mtnviper!

nytro rtx se
Veteran
- Joined
- Dec 2, 2008
- Messages
- 29
- Reaction score
- 14
- Points
- 853
- Location
- Cambridge-Bay,Nunavut,Canada.
- Country
- Canada
- Snowmobile
- 09 fx nytro rtx se old sled
14 Sr. viper rtx mpi190 old sled
17 sidewinder 137 xtx 300 hurricane
This can happen to all the sr vipers with the current set up of the steel ball that creates condensation in oil separator which freezes, Mine happened 4 times last year and I'm located in the arctic where temps go to -60 celcuis (messy when it happens). When I had my fx nytro it never happened once (over 12000 miles) and I keep my sled outside most of the time. I think the nytro system is built right into the oil tank which is a better design, I wonder if you use a one way valve that can allow it to breath therefore removing the steel ball would fix the prob.
Similar threads
- Replies
- 49
- Views
- 11K