Sleder44
Newbie
- Joined
- Sep 12, 2012
- Messages
- 5
- Country
- USA
- Snowmobile
- 2011 Nytro XTX
2015 Viper MTX 162
1994 Vmax-4- (Asphalt Sled)
- LOCATION
- Brighton Wisconsin
Hey Guys,
I have a dumb question for anyone willing to answer. So I am heading out west to Wyoming in February for my first time, time to spend the cash and see something other than the U.P... Anyhow, we are renting sleds out there with a guide when we go explore off trail, so that's not a problem. But we are going to have an extra 3 days or so out there/ driving home and will have a few chances to at least trail ride maybe a few different spots.
My question is, if we were to haul our personal sleds out there, that are set up for low elevation in the U.P., what kinds of issues will we run into, or is it not even worth the hassle of hauling them out there? Just trying to refrain from renting trail sleds, when we have perfectly good ones at home.
I have a 2015 Viper MTX that I re-clutched and geared for off trail, low elevation, so I know the issues that arise with that, I just don't know what will happen going the other way around.
Sleds we would bring out are either my 2011 Nytro XTX, or probably my Viper... and my buddy's 2016 ZR8000 (Yes I will be equipped with a tow rope for the cat)
Thanks!
I have a dumb question for anyone willing to answer. So I am heading out west to Wyoming in February for my first time, time to spend the cash and see something other than the U.P... Anyhow, we are renting sleds out there with a guide when we go explore off trail, so that's not a problem. But we are going to have an extra 3 days or so out there/ driving home and will have a few chances to at least trail ride maybe a few different spots.
My question is, if we were to haul our personal sleds out there, that are set up for low elevation in the U.P., what kinds of issues will we run into, or is it not even worth the hassle of hauling them out there? Just trying to refrain from renting trail sleds, when we have perfectly good ones at home.
I have a 2015 Viper MTX that I re-clutched and geared for off trail, low elevation, so I know the issues that arise with that, I just don't know what will happen going the other way around.
Sleds we would bring out are either my 2011 Nytro XTX, or probably my Viper... and my buddy's 2016 ZR8000 (Yes I will be equipped with a tow rope for the cat)
Thanks!
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I have made several trips out west and took personal trail sleds. The rx-1 was a bit finicky because of carbs but all yours are fuel injected so will be fine. the power drops radically every 5000 feet or so in altitude which affects the rpms but does not make the sled perform terribly just has less snap and top end.
Deeppow16
TY 4 Stroke Master
- Joined
- Oct 19, 2015
- Messages
- 1,159
- Age
- 30
- Location
- Montrose, Minnesota
- Country
- USA
- Snowmobile
- 2016 Arctic Cat M8000
2009 Yamaha Nytro MTX (Totaled)
2002 Polaris 600 XCSP (Sold)
1999 Ski-doo Formula 500 (Totaled)
Basically the only thing you will really need to change is the clutching. Because you will have less power at elevation your weights will be to heavy. You can contact your dealer as they should have books for you to reference so you know what weights to get. Other then that they should be good to go because they are fuel injected.
Clamb
Lifetime Member
- Joined
- Oct 2, 2016
- Messages
- 144
- Age
- 37
- Location
- Peoria IL
- Country
- USA
- Snowmobile
- 02 Sx viper Er 15 sr viper xtx
- LOCATION
- Peoria il
I took my xtx 2015 from Illinois out to Colorado and rode at about 10k feet and didn’t change one thing and hardly noticed a difference.
Mtnviper
Vendor
Deeppow16 is correct, typically your RPM will be down and it may pull the RPM out of the peak horsepower range. Because of the horsepower loss at elevation, the goal is to have the engine at peak power levels as much as possible.
You should be able to install lighter rivets in your primary weights based off of what the Yamaha clutching chart shows. The chart may recommend a tighter wrap on the secondary spring or a shallower helix as well. This is to improve back shifting and helps the motor recover RPM quicker when you back out of the throttle, then need to get on the throttle again.
If you have geared the sleds up for low elevation use, you may want to gear it down for the mountains. This will help lower belt temps and help the belt ride more in the middle (efficient section) of the clutching range.
Not sure if you still have the stock MTX skis on your Viper, but you'll want to run wider mountain skis on the sleds. They will help keep the front end up in deep snow and you will have more fun! Usually skis that are about 7" wide work well for most mountain riding conditions.
You should be able to install lighter rivets in your primary weights based off of what the Yamaha clutching chart shows. The chart may recommend a tighter wrap on the secondary spring or a shallower helix as well. This is to improve back shifting and helps the motor recover RPM quicker when you back out of the throttle, then need to get on the throttle again.
If you have geared the sleds up for low elevation use, you may want to gear it down for the mountains. This will help lower belt temps and help the belt ride more in the middle (efficient section) of the clutching range.
Not sure if you still have the stock MTX skis on your Viper, but you'll want to run wider mountain skis on the sleds. They will help keep the front end up in deep snow and you will have more fun! Usually skis that are about 7" wide work well for most mountain riding conditions.
