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Just pulled the subframe and everything looks fairly straight except the reinforced rear holes are oblonged again, and sheared the bolts off. It busted both spindles, warped both lower a-arms and the right upper. Left shock shaft is bent. The tunnel on the left is slightly bowed in 1/8” at the...

Someone from Above was definitely watching over me on this one… I am about to tear the front end down, see what else I find. My buddy who was behind me said all he could see was my tail light go sideways and nothing but powder then the headlights shining straight up, once the snow dust settled...

Hit a deer yesterday, doing about 75, I was somehow lucky to walk away unharmed, but the sled didn’t fare as well. It seems the deer some how hit low from left to right and the sled went right, I kept tumbling down the trail and the sled went right and just missed a tree and took a branch off...

You need to take the oil tank loose and let it hang to get at the tensioner bolt. I use a fish scale and hook it at the center point of the belt between the two pulleys. Pull it to 15 pounds and use a ruler to measure how far the belt moves from resting point. The tensioner pulley center bolt...

Please elaborate how it’s slipping off? Too loose? there should be about 1/4” belt deflection with 15 pounds of belt tension applied When the tensioner is tightened properly.

Looks like GT 3 series belts are now superceeded to GT 4 belts.

a quick search and someone on snowest posted this. Gates powergrip gt3, 720-8mgt-20. They said this was the one purchased from Ulmer Racing…

So, would you buy the Mountaintech arms? Is it really that much more stable? I expect so given the other reviews I have seen.

2013 xtx. Need parts. Hit a snow covered manhole, took a chunk out onf the new curve ski dead center of the spindle. Well I made it 5 miles after the subframe reinforcement. Right front lower a-arm is about 3/4” pushed back and top a-arm is pushed forward 1/4” and the spindle is bent inward at...

Options? Need a pulley, asap. machine the one I ordered?

Hp is irrelevant, looking at boost. We ride around 1100-1300 feet. My rtx is easily boosting over 7 psi on cold days with a 26 tooth lower. I don’t want to risk boosting more than 5 running 91 octane. So the 28 is out. It’s been bouncing off the rev limiter when I punch it seeing 9300+ briefly...

No, the Yamaha Low altitude OEM had a 26 tooth lower for rtx/xtx. I just bought a different sled and already has the 28/28 for 3,500-6000 ft.

Hope to spot a MPI 180 kit pulley, 26 tooth. I have found the steel alternative that gates makes, wondering if I can just use one of them instead. https://www.biedlers-belts.com/catalog/product/view/id/233427/s/gates-p26-8mgt-20-sprocket/category/5437/

I am not really wanting to go 129. Just installed a HD driveshaft with extroverts for a 2.52 pitch track. I am thinking it’s ok as is for ride, but a lighter skid that rides even better would be nice. Finding a nice R-motion out of a 1200 Rev is the hard part

The metal connectors in the two square plugs by the clutch look brand new when I removed them, not sure how to test continuity..but when grounding the tester, I get one wire in the one square plug that has continuity beep, and two wires on the other square plug the tester beeps. I assume the...

Wish it were the fuel pump relay, but would it die like he said it did the first time while running if it were a relay? After further reading in the electrical gremlins sticky thread, I have more to check in those ground blocks, I didn’t pull the metal connectors out to check completely but the...

Title says it all. It’s a friends sled now but originally mine. Temps around zero F. he said it died like he hit the kill switch and restarted after several tries, he said it cranks and nothing after a few tries it fired up. I witnessed it happen again the next day. We stopped on the trail...

Ulmer is hard to reach, but eventually will call back if you keep calling. Schmidt bros is better at answering, Have good results with their shock and skid work but no experience with the clutching. Have Ulmers clutching and is ok and easily tuneable, but seeing a lot more belt dust since...

Yes you are way rich. I run a Yamaha/Mpi 180 Supercharger with fuel setting at: Green 1.5 or 2, Yellow 3.5, Red 3.5, Green/blue 3.5. It‘s much closer to 12.5-13.5 in lighter throttle setting and 12 or a bit richer in heavy throttle, which is safer. You want no more than 12 at full throttle...