Over heating???

[Chewy22]

I installed my removable snow flap and tested it out today. Engine temps averaged 20-30 degrees F cooler with the flap on and the sled never overheated once all day! Pretty excited as it makes a drastic difference in cooling on harder packed snow through the trees.

I did have to trim the stock Catalyst flap slightly. Also, because the risers on the Ski Doo flap are taller than the thickness of the Catalyst flap. I ended up making a couple of approx. 1/4" thick backer plates out a medium duty truck flap. The truck flap is a fairly stiff rubber/plastic material, and I ended up sanding it down to the desired thickness on the stationary sander.

The backer plates are then riveted in place to the Catalyst flap and help it support the Ski Doo flap extension. When the snow flap is not on the sled, it fits nicely into my tunnel bag.

Best money that I've spent on a sled in a long time!

Nicely done! This will work great in those situations it’s needed.

 

[MTN_VIPER]

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.

 

[go-on-two]

Nice touch on the flap mod, AC should have a flap they would sell one to every M sled owner...they really suffer when snow is low down low.
I did nearly the same thing on mine, haven't tried it yet!!