8DN belt - a few questions

M

max_mountain

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Joined
Oct 24, 2003
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15
I burnt up a brand new belt towing a broken down skidoo. The belt is a week old and had less than 60 miles and I had tried to break it in gently, (as gently as 2 feet of fresh powder will allow) is it common to toast a belt towing or does this indicate a problem in the clutching somewhere? Will Yamaha warranty a belt burnt up in this manner?
 

Yamaha will not warranty a belt under those conditions and yes it very easy to toast a belt under those conditions, thats alot of force, dragging another machine and most likely the beslt is heating up and slipping.
 
I agree Yamaha will not cover the belt so get the doo owner to pay for the belt. It is his unreliable machine the broke and your Yamaha that pulled him home.
You should have taken pictures.
 
As the others said, towing is likely the culprit. The slower you tow a sled, the more heat that usually gets generated by slippage at the primary. However, towing too fast can sometimes be detrimental to the towed sled. Or so I've heard. :roll:
 
Ok that is a little bit of a relief, I was worried that I might have damaged something much more expensive than a belt. Now how about some input on the Dayco belts? Hartman's website states that they seem like a better albeit shorter lasting belt. Anyone here have any experience with them?
 
I've found the 8dn to be a far superior belt than the Dayco belt, both in longevity and performance.
 
I have a daycomax II on mine it is working good it took a little longer to break in but good now. And it is only half the price . I don't know which one is better.
 
I was towing a sled on the weekend.. after we got rolling I had to cut a fresh trail in 2feet of snow with a frozen srv tied to the back... needless to say it was full throttle towing. then we hit the packed trail and got to around 120 ... firgured if I had to punch it in the deep snow , might as well punch it on the packed too ...
 
I have found that no matter the brand of a newer sled, particularly high perf. machines, the stock belts are best.
 
When I have to tow someone I take 5 minutes and wrap the secondary 10-20* more, it delays the upshift (run more rpms at less speed) and lets the clutches put more force on the belt. works good for pulling the fishhouses around the lake also.
 
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