Track binding up on drivers, is yours?

[rwiebe]

Hey folks... anyone having an issue like this with their track pitch not matching the driver pitch? While trying to figure out why it feels like the brakes are on constantly, we see this and shoot the video... does yours do this? Watch as the driver tooth walks across the gap and then tries to crawl up on top of the cogs...

https://www.youtube.com/watch?v=AjABqTzr8lc

 

[CATSLEDMAN1]

I cant find your movie, I will check my two bikes. This has been a common tuning problem on sleds when you get down to fine tuning them and trying to cut down on rolling resistance, usually some driver plastic has to go, I will look at the current TS setup this am.

 

[rwiebe]

woop, how about this..

https://www.youtube.com/watch?v=AjABqTzr8lc

 

[007]

what kit is that on?

 

[chumbilly1]

Almost looks like a 3" pitch driver and 2.86 track pitch. Whats up with the yeti drivers and timbersled track?

 

[Grr]

looks like a 2.52 pitch 2" challenger track on 2.86 drivers to me. I would put money on it!

 

[chumbilly1]

looks like a 2.52 pitch 2" challenger track on 2.86 drivers to me. I would put money on it!

Bet your right.

 

[CATSLEDMAN1]

I see the video, not sure what to make of that, all three kits around here look the same. I will have to check with loose track and in the snow to see if that issue is still there.


what I did see on all the kits around the shop, drivers are too far apart in my opinion, side of driver rubbing way to high on track drive lugs, a power robber on sleds, I'll have to see what can be done without taking the drive shaft out and spread those drivers a little. Noticeable wear mark on track lugs after 25 miles on my new track.

 

[mnsnowhawk]

What kit?

 

[AnythingOutdoors]

what kit is that on?

looks like a MotoTrax kit to me with a yeti driver...but that seems odd, I'll have to check mine out. I have a MotoTrax on a kx450f that I have ridden once this year in snow conditions that were 3 ft of powder with no base. I could see several sled tracks that were kicking up dirt as the dug holes with there tack.

On the ride I went on, I didn't notice that it rode any different or felt like the brake was on. I know it doesn't role like a bike does and I was on the throttle just a little going down a slight hill in deep powder but thought that this was normal for all snowbikes....maybe it is not....? whatever the driver is doing, i hope that it is not issue...i'll have to check mine to see if it does it as well.

 

[Smiley282]

16 raw

What kit?

Yes binding hard

 

[ravenous]

The video is not showing real world conditions. There is no load on the track.I'm pretty sure with some track load the drivers will always be in contact with the cogs on the track, right?

 

[Mn T sled]

Rotate it by the main shaft & see how it acts .

 

[chumbilly1]

Early yeti drivers were cut wrong as well. Evidently bikes don't stretch track like sled does. Bet you got a set of those takeoffs someone updated. Turn em down on lathe is best option, or stretch that track

 

[CATSLEDMAN1]

track rubbing

14 ts 120 kit with upgrades.

3.0 pitch TS drivers
2017 120 track

Drivers rubbing on the drive lugs, mostly on the outside, and I have had to run tighter track to keep from track ratcheting ( on many cat models like early M7 M8 this condition would cause track ratcheting that was eliminated when you cut the drivers )

I used a 1 1/2" 40 grit sanding disc on angle die grinder and almost removed the molded edge on the outside of my drivers. Immediate relief when rolling the track and noticeably easier rolling when backing down my loading ramp. I will be able to loosen my track some without ratcheting.

 

[Answ3r]

14 ts 120 kit with upgrades.

3.0 pitch TS drivers
2017 120 track

Drivers rubbing on the drive lugs, mostly on the outside, and I have had to run tighter track to keep from track ratcheting ( on many cat models like early M7 M8 this condition would cause track ratcheting that was eliminated when you cut the drivers )

I used a 1 1/2" 40 grit sanding disc on angle die grinder and almost removed the molded edge on the outside of my drivers. Immediate relief when rolling the track and noticeably easier rolling when backing down my loading ramp. I will be able to loosen my track some without ratcheting.

any pictures of that ?

I've read that 2017 Yeti's driver are difference and I'm using there 2016 drivers...

 

[chumbilly1]

I talked to yeti about it because mine made some strange sounds and seemed to bind. They told me they made a change due to the tracks not stretching as much as they expected. The recommended fix is the ti driveshaft with upgraded drivers installed on it. Only applies to 2016 kits.

 

[mikew5945]

Here is another answer. I have a set of 286 pitch, 7 tooth anti ratchet, Avid power claw drivers with a 1 1/8" shaft. It is what I used to correct that problem. PM me if you want them.

 

[chumbilly1]

I thought all the bike kits ran 1 1/16" driveshafts??

 

[CATSLEDMAN1]

track rubbing on side of driver

couple of pictures to illustrate what I cut, I used on old driver laying around, this is not a ts driver for comparison, but the area between the drive lugs I sanded down and beveled it to more closely match the angle of the track lugs it was dragging on. 3 rides on the change in varying conditions, rolls better on my bike. Keep in mind I checked two 2016 kits with 2016 2.5 tracks.........the tracks from TS that are not fully clipped. My track that was rubbing is an 017 track I assumre later model fully clipped.

14 ts 120 kit with upgrades.

3.0 pitch TS drivers
2017 120 track

Drivers rubbing on the drive lugs, mostly on the outside, and I have had to run tighter track to keep from track ratcheting ( on many cat models like early M7 M8 this condition would cause track ratcheting that was eliminated when you cut the drivers )

I used a 1 1/2" 40 grit sanding disc on angle die grinder and almost removed the molded edge on the outside of my drivers. Immediate relief when rolling the track and noticeably easier rolling when backing down my loading ramp. I will be able to loosen my track some without ratcheting.