Track Vibration on '19 Summit 850 SP, 154/3"

[cram2012]

I just bought a used '19 summit SP with 230 miles on it and have noticed a track vibration of some sort when descending down hills in powder and at lower RPMs (5K-ish). I have read several threads on this forum and others that have a range of suggestions. I loosened my track, which seemed tight, aligned the track and tightened up the chain tensioner a bit bc it seemed a bit loose as well.

I jacked the sled up and looked at the track, tunnel, rails and driver real good and noticed some wear marks on the front left rail, and some of the cogs have some scuffing marks.

Does anyone recognize these problems? Am I on the right track to fixing it? Gonna take it out this week to see if track changes help but wanted to check with Snow West to see if anyone has any other advice. Thank you

??

 

[WestWAsleder]

Mine did it brand new. Good idea to keep an eye on all that stuff but I don't think you'll fix it.

 

[8emup]

Mine did it brand new. Good idea to keep an eye on all that stuff but I don't think you'll fix it.

 

[wwracer]

Mine's been dooing that for three years. Almost 2K miles of smiles... I got past it pretty quick

 

[cram2012]

Are you guys seeing the same kind of damage to your rails and driver?

 

[WestWAsleder]

Yes, my drivers look worse than yours. Like I said though, it's been doing it since day 1.

 

[cram2012]

Yes, my drivers look worse than yours. Like I said though, it's been doing it since day 1.

Right on, thank you for the input. I guess I'll just deal with it. The sled kicks ass and performs great, the sound and feeling is just unsettling but sounds like its par for the course.

 

[cram2012]

Mine's been dooing that for three years. Almost 2K miles of smiles... I got past it pretty quick

Miles of smiles. I heard that!

 

[Blainelukens]

My 19 does make way more track noise than my t3 xm ever did, honestly when I put my Elka shocks on I re tightened the track a bit looser than stock and it seems to make less rubbing sound. Not sure if the stiffer shocks or the track being less tight helped

 

[skank]

It’s normal. Nothing to worry about. Ride er’ like a rental! ?

 

[cram2012]

My 19 does make way more track noise than my t3 xm ever did, honestly when I put my Elka shocks on I re tightened the track a bit looser than stock and it seems to make less rubbing sound. Not sure if the stiffer shocks or the track being less tight helped

+1 Blainelukens.....I rode this week and the vibration has been drastically reduced. My track was much tighter than spec so I loosened it up and tightened the chain a bit and voila, 90% better.

 

[off trail mike]

154/3.5 = 44 lugs. No of teeth on drivers =6. Track clipped every second window. So you have a set of extrovert teeth on your drivers that never engage the track!!!

As my drivers wore down I decided to skip my track ahead one tooth to start wearing on those "unused" teeth. It definitely helped but the vib's never really go away.

OTM