Nicely done! This will work great in those situations it’s needed.
Over heating???
- Thread starter Drlsldr
- Start date
Thanks Chew22, this mod actually exceeded my expectations.
There is specific trail into the back country that is a "one way" in kind of deal, so you pretty much have to stay on the trail. In the past the temp would get up to 175 degrees F with the Red light on. On the same trail with the flap on, the temp gauge stayed at just one bar above the mid point all the way in. I'm sure it's possible to get it hotter if you do a lot of stopping without shutting the sled off. But it's definitely a win/win mod.
There is specific trail into the back country that is a "one way" in kind of deal, so you pretty much have to stay on the trail. In the past the temp would get up to 175 degrees F with the Red light on. On the same trail with the flap on, the temp gauge stayed at just one bar above the mid point all the way in. I'm sure it's possible to get it hotter if you do a lot of stopping without shutting the sled off. But it's definitely a win/win mod.
20-30 degrees is tremendous. Some us that have to ride in less than ideal conditions for these sleds, to get to the good stuff, def know the overheating challenges.
This is a great quick removal design. Can you share info on where you got the ski doo flap, or what it came off?
This is a great quick removal design. Can you share info on where you got the ski doo flap, or what it came off?
Ski Doo part number is 860202393 and it's off of Summit Expert sleds. List price is an eye opening (for a snow flap) $180, but I did an on-line search and found one for $135 with free shipping. Now I see Amazon has it for $128 from the same seller. Not sure how many they have in stock though, might become a hot item (no pun intended
!
Looks nice. I think having a full flap is very helpful in marginal snow, but it's a bit of an anchor as soon as you get into deep snow. I installed Everett's kit on my sled, and it's well worth it. More often than not I don't even bother dropping the scratchers. I can't say it's night and day when I stow the flap in deep snow, but I think it makes a difference. This looks a little easier to deal with; the latches on mine aren't glove-friendly. I'm guessing the 20-30 degree drop is typical, but it could make even more difference in some conditions. Definitely a good idea for most sleds.
Just a follow up on the removeable snow flap. Yesterday the local snowmobile club had our annual kids ride. So, lots of slow speed riding on trails in order to provide a safe environment for the little ones on their machines. These conditions can be challenging for mountain sled cooling and with the scratchers down and removeable snow flap installed the sled never overheated all day. Definitely pleased with this mod 
I have not got to test mine yet. Have to buy another flap. Lost my mountain tunnel bag Friday in Island Park up the hill/trail from Keg Springs parking lot. Looked all afternoon for it. Found a group that said the put it in end so it’d be easy to see. Thinking someone else may have taken it. Sucks, had a lot of stuff in it.
How was it on the trails in island park with the stock “flap”? Heading up their next week and just wondering what to expect with all the trail riding required up there. Never had an issue with my ‘20 and no flap up there so I’m hoping it’ll be similar, but lots of talk about 858’s getting hot.
I added the ski doo removable snow flap and it worked great on the trails with scratchers down. Removed when I got to the zone. The rides before that with stock flap was on the edge of overheating each time. I suggest adding the flap or you will probably be fighting heat on the trails.
You will battle a bit going up hill on the trails, especially if it’s cold and freshly groomed. On the flats and going down hill it’s ok. Really wish I had the flap. If it’s warm and the trails are soft should be alright. Just watch it, damn thing heats up fast.
First ride today on the 858 temps ran anywhere between 132-140 two sets of scratchers , mainly ran groomed trails today not quite enough to safely get off trail ,able to a few times and bumping the edge would cool it off , have the removable flap but haven't had time to build the adapter plates like MTNVIPER did makes it a clean install, at least i have a baseline for comparison , temps were upper 20's loose snow on the trails
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What is your double sets of scratcher setup?
Chewy,,,
Here is a pic of the sno pro, same set up as on my alphas and 858, noticed yesterday after popping out in the trees and hitting trail temps went to 142 , stopped and one scratcher had pointed forward, fixed it and temps went back down to 135, gonna see if their is room to add a second hole for the short end spring tab to keep it in place , funny other alpha has never done that, flipped forward ,they do seem to help maybe 6-8 degrees . Kinda feel like a porcupine with so many scratchers lol
Here is a pic of the sno pro, same set up as on my alphas and 858, noticed yesterday after popping out in the trees and hitting trail temps went to 142 , stopped and one scratcher had pointed forward, fixed it and temps went back down to 135, gonna see if their is room to add a second hole for the short end spring tab to keep it in place , funny other alpha has never done that, flipped forward ,they do seem to help maybe 6-8 degrees . Kinda feel like a porcupine with so many scratchers lol
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I've also seen pictures of cable scratchers hanging straight down from the boards at the front of the tunnel. But have not heard how they work.
Yeah me either on those , these seem to make a difference , between pulling over every mile or making it to the back country with some bumping thru the trees enroute to help temps , really curious on MTNVIPER mod, gonna get that done this week should have similar conditions later this week see how that goes .
Looks real similar to this setup: https://www.kmodsnowmobileparts.com/collections/arctic-cat/products/ski-ice-scratchers
Do you feel the ski scratchers trying to pull at all on the trail? Like affecting the steering or effort.
Do you feel the ski scratchers trying to pull at all on the trail? Like affecting the steering or effort.
Trees would wreck that scenario for me
No difference in steering and successfully drilled and retained the short end of the spring , come on TT tree riding is the best 
