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From what Ulmer told me, shafts ordered as parts, have not been updated, they won't be updated until they run out of old inventory of shafts in the warehouse. 2021 sleds have a new updated shaft installed at the factory.

I had Ulmer do a shaft last year and I know he was doing them for a few dealers. I think it was about $100 total with shipping back to me.

Saw these on Ebay. https://www.ebay.com/itm/Yamaha-SR-Viper-Arctic-Cat-7000-Billet-Air-Intake-Velocity-Stacks/264860695876?hash=item3daaed7d44:g:TskAAOSwoBtfOodc

You should be able to go to an auto parts store (or Ag equipment parts department) and get a -133 o-ring. This o-ring below would work, but doubt you want to buy a bag of 100! https://www.mcmaster.com/9452K138

https://shop.ulmerracing.com/Oilite-Bushings-Individual-Replacement-detail.htm?productId=-6092782&shopBy=-26776&catalogId=-11683 You need four (4) of the 90381-15001-00 & four (4) of the 90381-1001-00 bushings. Email Ulmer if you're from Canada, his website isn't setup for shipping to Canada...

Had a rip on a Sidewinder BTX studded with a Stage 3R flash Sandale Hyperflow, etc all setup by Ulmer, freaking monster!

It's running out of fuel. The fuel return design is not keeping the "banana clip" that the fuel pump sits in full of fuel and it begins to starve for fuel. Call Ulmer and get a Precision EFI fuel upgrade kit, it moves the return so it fills the "banana clip" when it's returning, it'll fix your...

Ulmer has his headers on sale on Ebay. https://www.ebay.com/itm/Yamaha-Apex-8HG-14610-01-00-2011-2018-Replacement-Exhaust-Header/263479888636

IMG_20180209_121119 by Yam4Strokin posted Feb 9, 2018 at 12:15 PM IMG_20180209_121139 by Yam4Strokin posted Feb 9, 2018 at 12:15 PM

60Y & Heavy Hitter use the exact same profile. It's a Polaris 10- series weight profile, a Heel Clicker also uses that profile. Ulmer had the YS series profile made by STM, it is a replica of the OEM Yamaha 8ES profile.

If the belt was slipping that bad you'd have way more belt dust on the clutch and engine IMO. I think the flash of the camera is making it look worse than it is. It appears the clutch moveable sheave (what you can see in the picture) is clean as well as the motor. If it was slipping that'd...

Mileage is stored in the speedo cluster, hours is stored in the ECU.

Look at # 2, 3, and 4, this picture is from the 2010 FX Nytro. This is the 2016 parts fiche, look at 2, 3 again.

You're incorrect on some of your information. The 2008 to 2015 FX Nytro/SR Viper models all had rod bolts that went through the rod with nuts on the bottom side. The 2016.5 motors went to bolts. The new rods in the 2016.5 kit is back to rod bolts that went through the rod with nuts on the...

http://www.ulmerracing.com/emgo-carburetor-synchronizer-detail.htm?productId=17351184

If it's cheaper than everyone else, there's probably a reason for it! Second guessing spring wind (wrap) is something no one should have to do!

I think he meant it has 21/49 gearing, not 21/40 gearing.

Looking for a G-W-G call Ulmer Racing, I got one for my mountain setup from him and he said he had plenty on hand (as I saw they were back ordered as well).

DI settings are not adjustable. Those are simply your diagnostic mode and giving you readings of different sensors.