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I searched and read several threads about the seat but could not find part numbers in the threads or in the catalog. Here is what I have put together, Bumper Yamaha - SMA-8JR41-01-00 for XTX Cat Seat - 6639-722 https://flipflashpages.uniflip.com/2/67606/347074/pub/html5.html#page/113 Hand...

Hey Guys, My sons 08 is getting oil in the air box. After 100 miles or so it will be down 1/2 to 1 qt. Any idea what causes it?

2015 Viper XTX 2.0 Last years mods, MPBR trail can COTC with 8DN 94 Grandmaster Picks Simmons Gen3 Skis HID headlights LED driving light AC riser 145Lb center spring NEW mods for this season Clutches machined by Ulmer Big Venom Air Box Mod from Ulmer Dalton adjustable weights Hygear coupler...

I got the new Venom Air Box Kit in and installed it. I like it a lot. Install was easy (if you have the tools) and I can't hear and change in the sound in the shop. It will pull cold air and that should help a lot. Quality materials make up the kit and the instructions were fine.

Does anyone know the stock rear spring on the Attak and what there are for options going up? I have a buddy that is a bigger guy and his sled is always squatting. The shock is good, it seems the spring is weak. Thanks.

I know this is preaching to the chior for a lot of you, but for the new guys looking to get some things done to their Yamahas. Allan at Ulmer Racing has once again shown me why they are so well respected. I sent in my clutches off the Viper and was looking for some adjustable weight advice...

What is this tool that saves time and money? A PC. We put a networked PC in the shop a couple years ago for service related documentation/study/research etc. This year I put a 42" monitor on it so you can stand around it and everyone can see/read. Just about every type of service you can...

I have a buddy that just picked up a 2013 Nytro XTX and I was wondering are they prone to the same sagging I hod on the 2009 or was it ever addressed? If it is prone to the same sagging, is the Star Suspension upgrade still the way to go?

On my new 2015 ViperXTXSE I still occasionally have hard start issues. For me the best method to avoid the kick and possible back fire is to simply stay on the key a fraction of a second longer. I can easily see how starters could be toasted based on the kick backs. Are they still tweeking the...

2015 Viper XTX SE I did the COTC mods last year and aside from the weights being a pain to change, it was good all around. I will be machining the clutches as well as a few other things before the season this year. I would like to be able to change out the weights easily. What are good ones...

Hey Guys, I am going to go look at a motor for my sons 08 Nytro on Wed and I was wondering where the mileage is stored? The ECU or the cluster? The guy has it all parted out and "thought" it had 2500 miles on it. I was going to take another nytro with me and either plug in the ecu or...

What is the trick to recalling max speed and RPM. Searching I find tons of reference to it but not how to get it. Thanks

2015 Viper XTX SE (625mi) - COTC (4 shims) - MBR Trail Can - 94 picks How high should your belt climb up the primary clutch? I can hit 90 now at will and it is about 9000RPM when it does. I have marked my primary clutch with a sharpie and it stops .425 from the top. Should it get to the top...

On my 2014 Viper XTX there was no anti-stab kit and I put one on. On my 2015 Viper XTX it came with the anti-stab kit stock. I asked the dealer about it and he didn't know anything. Are all 2015 XTX's coming with the kits?

Hey guys, I picked up a NOCO Genius Boost GB30 to replace a larger jump pack I use. I have not tried it with it (the unit) freezing, it is usually at room temperature when I take it out. So far it has been great. Jumped/started flat dead 2007 apex. Jumped/started a 2011 apexXTX at -20F...

Well I crashed my first sled after 25 years of riding. I wasn't on it when it crashed fortunately. My son and I were heading back to the cabin on Dec. 27th on a feeder trail with snirt and water bars. Normally I throttle a little on the water bars and just hop over but on this trail it was...

I have a 2015 XTX SE with the float 2 in the back. It has 100 miles on it and aside from the initial break-in they were average miles. When you sit on it it will squat about 5" (I weigh 175) and rebound on its own about 3" when you get off. To get it back to the top again you actually have to...

Does anyone know the spec of the oil tank plug? I want to get a remote for it like one of these but I need the thread size. http://www.amazon.com/dp/B003VCEV0Y?psc=1 Thanks

I want to put a tether shut off on my XTX. Q. - Does anyone know the wire color coming down from the top switch? A. - It is the Red wire with Purple stripe

What would be a specific AC model that parts interchange with the Viper XTX?