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Trying to figure out why my limiter straps snapped

Bradford

Expert
Joined
Jan 7, 2007
Messages
396
Location
NB Canada
Country
Canada
Snowmobile
06 RS Nytro
Ok, I installed tipped up rail extensions and a 144" track this year on an 06 RS Nytro. Last year, I had both shocks re-valved and they have worked out great with good rebound control and very little bottoming. After about 400 miles with the 144, I noticed that both of my limiter straps were broke. At first I thought that maybe I had a blown shock causing too much rebound but the shocks seem Ok. I also noticed that I was getting a lot of rebound at times, similar to what I was getting with anti-bottoming stoppers installed and I don't think I have bottomed out yet this season.

With the broken straps, the track had about 2" of sag with no additional weigh on it. After installing the new straps, the sag went back to where I had it set: 1" at 5 lbs.

All this makes me think that the track gets tighter as the suspension compresses. If so, I'm thinking that the track is getting too tight when the skid cycles and the track is causing the skid to snap back against the straps

Looking for "ANY" input! Thanks

UPDATE:
I disconnected the front shock and the rear springs so that I could completely collapse the skid. About 2" before it bottomed out, the track was as tight as a banjo string! I found that if I adjust the sag to 1 1/4" @ 5 lbs, I can just collapse the skid to the bump stops. The track gets tight at this point but not like it was

I'll run it over the weekend to see how it works out
 



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