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WTB - 25/45 15 wide Hyvo gear set w 90 pitch chain. New or gently used.

FYI- I was just informed by Country Cat that Arctic Cat top hyvo gears no longer have oil holes. Maybe this is old news to some. Country Cat says Cat upgraded the bushing material and the oil holes are no longer needed. There is likely still some inventory out there of the earlier gears with...

FYI - for those who haven't seen results ... Dominic Earnst riding Eagle 1 won Outlaw Class at Hay Days 2025 with a winning ET of 3.346 at 159.91 MPH (in 500'). 60 ft reaction time was .978. All nitromethane powrered this year - not a blend of other fuels. Announcers said Eagle 1 has...

FYI - Polaris Just Patented a Composite-Framed Snowmobile. Are Carbon Fiber Tubs Coming? https://share.google/D2Rzwfh0e0N8eNMGc

Just putting this our to our experts. When doing routine yearly maintenance on rail assy, if an idler wheel seems "dry" or is "noisy" (not smooth, not quiet), should we replace bearing (or entire wheel assy) with new, or is it just as good to just regrease bearing? I.e. pick seal off bearing...

Maybe something that will fit in Catalyst chassis? From Yamaha: Class-Leading 999-cc Parallel Twin Engine The Wolverine X2 1000 R-Spec features a Proven Off-Road 999cc DOHC, eight-valve, parallel twin-cylinder powerplant based on its premium RMAX 1000 sibling, revving to an 8,500 rpm redline...

Recently, I completed a turbo modification that consisted of changing out both compressor and turbine wheels with the goal of improving air flow/efficiency in a stock system. My attitude going in to this project was this is an experiment on an occasional use toy. If it works, then great and...

Putting this out to experienced 998 engine guys - Soon I'm going to be installing a new SIT kit. My question is how long do the stock OEM valve seals and springs last? While I'm doing this, should I replace both? Engine has approx 350 hours of run time. I've read that the stock valve...

What's the consensus? Is it just miles, or does it depend on condition? Does one measure with calipers and decide based on wear? Or, does it depend on if sled is tuned or not, and if, or how many studs track has? Looking for opinions.

Looking for 3" Viney Fab or 3" Sandale Hyperflow muffler for 998. Prefer gently used but will consider new.

New world record at Haydays today. Dominic Earnst on the Hypersports Eagle-1 164.95 MPH - 500 ft. ET: 3.408. 60' time: .969. See time slip in pic. Haydays this year about same as many. Heavier traffic yesterday than today. Lots of swappers. Racing very good due to cooler temps...

I use a TD adjustable FPR on my Stage 4 998 Cat. During off season, I run my sled once a month up to "re-lube" engine, circulate oil in chain case, etc. Been doing this for years. Today was the day and sled fired right up as usual. However, after about 3-4 minutes at idle, it started to...

Curious to hear from others as to exact location of ball bearing that is pressed on jackshaft. I have serviced a number of local TCats and replaced that bearing. In some, that bearing is against the shoulder, in others it is about .020-.030" away from shoulder. It's like it was pressed on to...

I'm looking for experiences/comments/knowledge about occasionally using C16 to speed run/drag race 998s. I've searched TY and found some info but looking for more. I occasionally like to speed run/drag race (run-what-you-brung, LOL). I currently have PEFI Stage 4 (4-bar 330HP pump gas tune)...

Just FYI - While doing pre-season maintenance, I noticed a few drops of what turned out to be brake fluid right below the caliper housing/brake pad area. Thought it would most likely be just a seal ring (square o-ring) problem. Pulled the outer side of the housing off, removed piston, and...

Arctic Cat just announced new 858 CC twin for Catalyst chassis. 11% more power than previous Cat 800s and 4% lighter than 600. Based on 2023 800 being advertised at 166 HP, this new engine should have about 183 HP in stock form. It is also mounted a tad lower in chassis than 600.

FYI - June 15 through July 15 PEFI is offering 15% off all snowmobile parts and ECU flashes.

I am building a new track (1.25" Rip2 137") so I wanted to explore studding weights between Woodys Megabite, Stud Boy Lake Racer, Woodys double alum plates, Stud Boy ProLite backers (both double and single). I was curious about difference between 1.575" Megabite compared to 1.625" Stud Boy...

I know this isn't the classified section but does anyone have a 3" TD Turboforce muffler for sale?

Asking question/opinions: for those that have had both BOP MPS and GSE Power steering on same (or nearly identical) sled, how would you compare the steering effort for each? Nearly same? Or, which one was easier at average trail speed? Which one is easier on tight twisty trails?