Timbersled Aro - heavy deceleration noise

[Teej83]

Went whipping around this weekend and noticed a lot of deceleration noise/resonance (sounds like gear whine) when I was off throttle coming from the Aro unit. Prior to venturing out, the chains were tightened to spec (taut on drive chain at full extension due to TSS). The track also had the exact right amount of slack below the hyfax when lifted. Any idea what the culprit could be or common areas I should check? The unit does have a lot of rolling resistance, but I've heard that is often the case.

Going to try to track it down tonight

 

[POLZIN]

loose ( stretched ) chain would be my guess. we had to adjust bot our AROs after the first ride

 

[powdermuncher]

Yes they are real bad that way standard to the design.
It does get a bit better as the sliders wear in.
That big S turn that the chain makes around the bottom sliders is brutal on deceleration.
I went from a 13 to a 15 tooth front sprocket and it dramatically reduced the noise and engine brake effect even seems to be a bit less. I also flipped the gears in the secondary to gear it back down a bit. Worked real well to reduce the noise.
Right now we have no real deep snow so the gearing is great for speed but may need to re visit it in deep pow.

 

[Snow donkey]

I have found the tracks come from the factory super tight might not hurt to loosen it if you haven’t already

 

[skidooboy]

snow donkey is spot on. loosened my track, lost quiet a bit of drag, and ALOT of engine braking. not nearly as harsh now. Ski