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From post I have seen... the 144 tops ends the best over the 129 and 137. I would guess the 146 is slower then the 144... the 2.52 pitch are faster then the 2.86.

It’s a 2” track, 90’s is all your going to get with the gear ratio in it. When it over revs enough it will hit the rev limiter and stutter the ignition to lower the rpm. I would find a spot with 1’ plus snow and put it to the bar and see what the rpm’s is. I’m thinking if your on a surface with...

Usually you can turn them with your fingers, when new they can be a little tighter then can use channel locks or crescent wrench.

IMO if they can pump out 25-30hp from the 650 with a turbo that is a better way to go with a turbo and drop the 840. Two choices, a 650 with or without a turbo. The mountain guys still get a sled with 160hp at elevation as well as the flat landers. They can focus on getting one engine platform...

Add the 1.75” Hurricane as an option for the Assault. The plastics painted again. Choice of plastic base color with separate choice of plastic ascent color. Still would like to see the jack shaft and driveshaft go back to the greasable version. More durable idler wheel bearings. Wish list: add...

My plans for next week of riding... cancelled. Seems like the last few years in MI, the riding season is down to a month. Doesn’t make me want to go out and purchase anything new.

The 64-60F with a 140-220 spring works well in the tied in an 800. From there I would load it up.

The cobra track is really a 1-1/4” lug height. The extra height is in the little rubber tips.

Better then taking a chunk out of the bulk head.

Not sure if your going to tune it out. It’s an 840 and it just has some low end grunt.

Did the stock set-up act like your current set up when engaging?

Did you ride it with the stock set up before making any changes to clutch components?

IMO, unless belt sheave clearance is way off, it won’t change much. A 110-290 Polaris spring will be a little softer. And, a 100-275 even a little more soft. Not saying either one of these will increase performance in other areas. Not familiar with QAP’s, but I do know the SLP magnum force wts...

I stand corrected. It is 100-275. They used it the last couple years in the 840.

Know not much snow around and sleds still in break in mode, but I'm interested on Hurricane 1.75" track feed back through the season. Interested in gearing used with top mph with said gearing. Lug, & if used, I-Grip stud wear.

Someone on the other site had an excellent idea. Swap hoods with one of your buddies and see if it works like it should. 1) If it still doesn’t work it’s in the ecu or in the wiring harness on sled side. 2) If it works then it’s in the gauge, gauge software, or the wire harness on the hood side...

Can go with the gold Polaris spring 110-290. Not sure about getting 3000rpm engagement, but it should soften the engagement. Might wait till the sled is fully broke in before making to many changes.

When I seen that change to a 150, that’s the 1st thing I thought would happen when putting around. Just not smooth when going slow. I bet the lower engagement spring will take that jerkiness away. Not sure why they didn’t want to add more weight, but think they are using that spring for its soft...

I would replace with OEM.

Any other comments to make on the 150 storm? Hoping they would make a 121” version next year for my XCR.