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I’ve been involved with a couple 973 cam tensioner upgrades, but have never seen one fail first hand. The triple three holers have been bulletproof aside from the early versions with the older version tensioner, and even those were few and far between when these sleds were new ish. I’d need to...

The Elka shock is not better, it’s a 36mm IFP shock with a rebound clicker vs the stock KYB 46mm IFP shock with rebound clicker. I know which I’d rather have in my sled. Peak Velocity in Claremont Ontario has pretty quick turn around times on rebuilds and can get that shock fixed up no...

Was the cam chain tensioner updated to the newest version on either of these 973’s?

OEM bearing should be a Koyo, although I have used plenty of NTN’s in that location over the years with no issues.

I don’t have to go over to HCS anymore, it’s come here…

I ran out twice last season on a bagger trip in Quebec with my ‘16 XTX, both times just shy of 200km total. I’d say about 190km is my absolute max to push it.

Any chance you’d go WRP/Seat Concepts seat kit? It will solve your cover problem and the updated riding position is worth its weight in gold!

If the shock doesn’t have the updated seal head part # in it you should do the update, let me know if you need the number.

Yes sir, not too awful far from the oil filter, should be a green wire with a yellow tracer coming from it.

Have you replaced the oil pressure sensor? I’d start there, and trace the wiring to make sure a rodent hasn’t chewed it off.

This is correct, the nitrogen pressure works against the rebound clicker, so if it doesn’t click the shock has lost some of its nitrogen charge or shock oil and needs to be serviced.

I’d be tempted to put your BOP multi-rate on it, start with compression soft and rebound 12-15 clicks out, adjust as needed.

If this comes to pass I’d 100% consider building another Nytro to ride.

I’m getting cold just looking at that windsheild….

I’m with Maim on this one, if the filter doesn’t have any metal bits present run her a bit and go from there.

Aggressive snowtrackers on those stock skis you’ve got will work fantastic in the trail. I along with many other Yammy 4 stroke veterans have logged 10’s of thousands of miles with that combo. If you NEED extra front end flotation trackers on the MTX skis are a great combo as well, that’s...

Thanks Tom.

My only suggestion would be contacting Allen at Ulmer Racing, he’s got lots of experience with boosted four holers and is a site sponsor.

Ah okay. On the ‘11 + Apex sleds Power Commander ran their harness directly to the injectors individually and the TPS as well. I’ve never seen a GEMS setup on the second generation Apes so I’m not much good to you. Sorry.

What year is your sled? You should be able to trace the GEMS harness back to the big grey connector located on top of the Deltabox frame above the clutches. Eliminate the GEMS piggyback T harness, clear code, and then re-install. All of this is assuming you have an ‘06-‘10 Ape or Attak.