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2000 miles on my Muffinworks copper gasket with MPI turbo. No issues.

Not sure about the speakers but I have one for sale. Worn it one time. I know Mr Sled uses speakers in his Mod 3. PM me if interested in the helmet.

I'm very involved in my local club here in Marathon county (Rib Riders) and once you see how the finances of running a club work you would think twice about complaining about the trail pass. Clubs maintain almost all wisconsin trails. They are 100% volunteer. All the work and late nights are...

From my expeirence and from exhaustive testing with Mr Sled and friends from TY last year testing clutch setups, we found that the 8dn had better, more conststant compound, more consistent sizing, and gave better results on any given day over a wide range of trail conditions. Couple that with...

Over 4600 miles and no issues. Original hyfax went 4000 miles and could have probably gone another 1000

It seams like this forum has gotten way to negative. TY is here as a help for thousands of people. It is a learning tool and a place to go when you need answers to questions. I know there may be a few problems but ALL sleds have them. My personal experience with my viper has been...

Tunnel is fine so far but rails are starting to peel. Haven't they heard of power coat at Arctic Cat yet.

I would try clutching first. Get rid of the 8JP belt and go the the 8DN. You may find it to your liking. If you need more power then try and exhaust and intake or spend the big bucks on a turbo. The reason most people are adding power is because the viper is down on ponies compared to the nytro...

If you read a little earlier in this thread we found that belt manufacturer made no difference in performance, but a belt change will force you to change your clutch setup to get the same results. My bother and I basically have identical sleds, I'm now running the Yammi 8DN and he's running the...

Who would this imaginary "legit" source be? You have to remeber that they do spend a lot of time and money putting the kits and settings together. They just don't dream these things up and hope to sell kits and dupe us out of hard earned cash. I stick with reputable suppliers, ones that...

As a side note.... I don't think I mentioned that I verified the speed on the speedometer with an onboard GPS. The speedo is very very accurate. It's was consistently within 1 mph of the GPS.

Remember the top speed of the machine therotically is governed by the mechanics of the sled. To gain top end the only thing you can do is improve clutching efficiency or increase RPM's. A certain rpm turns the clutches (at about 90% to 95% effecency) which turns the chain (at a set ratio) which...

Traction seamed very close between the two with straight line traction edging towards the ripsaw. I however prefer the cobra in the turns. Switching from the ripsaw to the cobra on the Viper is not nearly as dramatic as it was on the Nytro.

2014 RTX SE, 129 x 1.352 cobra, Ulmer exhaust can, Yamaha 8DN belt, Ulmer clutch Kit with settings according to kit recommendations. 2015 RTX SE, 129 x 1.25 rip saw II, Ulmer exhaust can, Ultimax XS805 belt, Ulmer clutch kit, with settings modified for belt compound 2015 XTX, 144 x 1.6...

I would agree with Mr Sled. I helped out with the testing today. We had three vipers And results were very similar across the board. We switched riders from sled to sled on multiple runs to try and quantify "feel". Most of the time we could all agree on the low, midrange and top end "feel"...

does anybody know if a 23 tooth top gear is available for the viper?

No warranty, it's a wear item. The parts are the same as the nytro. If fact I think the entire clutch assemblies are right off the nytro. $51 for all three buttons and I'm back in business.

3150 miles.

Looks like I have my 1st warranty claim. Anyone ever seen this before?

C&A Razors with 6" Slim Jim Dooly's. 70 psi main 150 psi evol, full weight transfer, M on the torsion spring, limiter strap all the way out on my 2014 RTX. rides good, handles flat, light to mdium steering effort and very little push in almost all conditons,