rightarm
TY 4 Stroke Master
Ported Hornet said:rightarm said:I buy a new belt at the start of every season,I am not willing to see how long a belt will last,I need to get home after a days ride not be stuck out in the middle of nowhere because I was too cheap to buy a new one.
Thats why you always carry a spare.Must be 2 cheap too buy 2. I could get a good season on a stock doo belt, now on a dayco I was luck to get between 250-500 miles
Thats what the belt from last year's for A SPARE! SA!
Daranello
Suspended
ttt
Metallicat
TY 4 Stroke God
Dayco no longer exists, now owned by Carlisle. I ran the recommended, softer compound Carlisle belt (the XS I thinks) in my Vec last year but it is a bit longer than the stock Yammi belt, and a quite a bit narrower (or more narrow if your prefer). It held up fine, but you'll need to shim your secondary to compensate for the slack. You'll need the thinner washers for your secondary belt adjustment bolts. Not sure it is worth the hassle. This particular belt was recommended last year in SnoTech magazine, with a blurb from Hartman who sells and promotes them for use in the mtn sleds. Doesn't seem to affect clutching much, really. I went back to the stock belt.

Muffin
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If you want a general purpose belt that will last for 10-12k miles of average trail riding stick with the Yammi belt. The Yammi belts are hard as nails and last forever.
If you want a belt that will improve your sleds overall performance especally in the deep wet snow and take all you can throw at it for 4-6k miles buy the Carlise XS ( part #XS805). They run cooler, are more flexible, and grip way better than the stock. Because they are softer and grip better they will wear out after a season or two.
IMO by a new XS every year or two and use the stock as your spare. The spare will look brand new 5 years from now because you will never go thru an XS in a season.
If you want a belt that will improve your sleds overall performance especally in the deep wet snow and take all you can throw at it for 4-6k miles buy the Carlise XS ( part #XS805). They run cooler, are more flexible, and grip way better than the stock. Because they are softer and grip better they will wear out after a season or two.
IMO by a new XS every year or two and use the stock as your spare. The spare will look brand new 5 years from now because you will never go thru an XS in a season.
LJ 452
TY 4 Stroke God
revmuffin said:IMO by a new XS every year or two and use the stock as your spare. The spare will look brand new 5 years from now because you will never go thru an XS in a season.
Where is Hondo?

Honestly I have yet to make it a season on just one belt. I don't beat on the sled either. But considering an 8DN is about 65 bucks and the others are 100+ I'm going to stick with the 8DN. I do like that the XS is a little softer but to me not worth the extra $.

Muffin
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I can definitely see your point. I'm coming off of an 04 rev and maybe I'll think differently when I start riding my new XTX.
Please don't take offense. I guess I would rather use a belt that I thought perfromed better especaily when wet, for an extra $35. It's only 1 cent per mile for a 3500 mile season.
Now may be a good time to mention that if you can't make a belt last for 3k, it may be time to check clutch alignement, springs, bushings, ect.
Please don't take offense. I guess I would rather use a belt that I thought perfromed better especaily when wet, for an extra $35. It's only 1 cent per mile for a 3500 mile season.
Now may be a good time to mention that if you can't make a belt last for 3k, it may be time to check clutch alignement, springs, bushings, ect.
LJ 452
TY 4 Stroke God
revmuffin said:I can definitely see your point. I'm coming off of an 04 rev and maybe I'll think differently when I start riding my new XTX.
Please don't take offense. I guess I would rather use a belt that I thought perfromed better especaily when wet, for an extra $35. It's only 1 cent per mile for a 3500 mile season.
Now may be a good time to mention that if you can't make a belt last for 3k, it may be time to check clutch alignement, springs, bushings, ect.
Right, the belt should last at least 1800 miles I would say. 4000+ if you just cruise. The last two years we had quite a bit of powder, and that seems to be much harder on belts. Since I mostly trail ride, it's always corner to corner and agian that's pretty hard on them.
skyboz
TY 4 Stroke Junkie
I lost an 8DN around 1700-1800 miles and so did another guy in our group. I bought an XS for a spare and lost RPM's. It didn't seem as responsive either. Maybe it's just me, but I plan on keeping it for a spare and running the 8DN! 

LJ 452
TY 4 Stroke God
skyboz said:I lost an 8DN around 1700-1800 miles and so did another guy in our group. I bought an XS for a spare and lost RPM's. It didn't seem as responsive either. Maybe it's just me, but I plan on keeping it for a spare and running the 8DN!![]()
That's what we noticed on Beefs Viper too. Stock belt, RPM good, XS belt he lost about 200-400 RPM up top. We ended up setting the clutchng to the 8DN.
Snoxracer242
Expert
LJ 452 said:skyboz said:I lost an 8DN around 1700-1800 miles and so did another guy in our group. I bought an XS for a spare and lost RPM's. It didn't seem as responsive either. Maybe it's just me, but I plan on keeping it for a spare and running the 8DN!![]()
That's what we noticed on Beefs Viper too. Stock belt, RPM good, XS belt he lost about 200-400 RPM up top. We ended up setting the clutchng to the 8DN.
Because the hard 8DN yamaha belts slip, causing over rev
Ported Hornet said:I used to run Dayco belts a few year back when i rode Doo. The never lasted as long a oem belts. They would also fray and eventually come part!
Same here. The Carlisle Ultimate XS on my MXZ700 didn't even last 1/2 a season. My friend owns a service shop and everyone who bought Carlisle belts complained. He no longer carries anything but OEM.
belt
Ran the xs805 on my nytro all last season 2700 miles and it is still good to go this season.Much less belt dust than the 8dn and no black spots on the clutch faces.
Ran the xs805 on my nytro all last season 2700 miles and it is still good to go this season.Much less belt dust than the 8dn and no black spots on the clutch faces.

harrysmith500
Newbie
I'm a newb tool to yamaha. Can I run a xs805 on an MTX Nytro Mountain
swmichvector
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belts are a lot like skis, what works for me might not work for you.

UP bushman
VIP Member
A novel of experience on the Carlisle Ultimate Pro Belt has been great on my 2007 Phazer MTX with good life as well. It did fail at 1800 miles but this is the reason why, I started on a clutching journey and boy was it worth it. If you keep original package you can send them in for warranty as I did. The primary was machined for overdrive causing the edge of primary sheave to hammer the cord portion of the belt. The belt did not explode apart I noticed the cord material coming out of the tunnel by my feet.
I can't tell you how many holeshots I did with this Carlisle belt probably 200-250 no lie. Then just general deep snow rugged abuse riding dialing in clutching to best setup. Now the result info after clutching was achieved, cooler clutch sheave tempratures, no slip on shift out and easier to dial in primary rpm without belt slip. The traction improvement was BIG as well on hardpack or powder.
After having to put stock belt back on and get the Carlisle belt warranty replacement. I had to change primary spring to less rate and drop secondary twist from 50 to 40 degree twist to get rpm some what close. And it was still miserable compared to what I had become used too. I will never go back to stock 8DN belt just for longer life. My performance gain was real time experience. I experienced exactly what is listed below high holeshot rpm then pulled down once belt grabbed and finished shifting out.
The stock 8DN belt feels like it hooks better but that is due to slip and hook condition. Example you hit a corner wack the throttle belt is slipping and then it hooks feeling more rocket like. The 8DN belt can also wear grooves in your sheave face if kept at a specific area for long periods.
I'll stick with the performance gain on a softer belt and maybe shorter life span. A clutch kit with stock belt still leaves alot on the table and inefficiency as well. A cool clutch is a happy clutch and that equals better performance good luck in your choices.
I can't tell you how many holeshots I did with this Carlisle belt probably 200-250 no lie. Then just general deep snow rugged abuse riding dialing in clutching to best setup. Now the result info after clutching was achieved, cooler clutch sheave tempratures, no slip on shift out and easier to dial in primary rpm without belt slip. The traction improvement was BIG as well on hardpack or powder.
After having to put stock belt back on and get the Carlisle belt warranty replacement. I had to change primary spring to less rate and drop secondary twist from 50 to 40 degree twist to get rpm some what close. And it was still miserable compared to what I had become used too. I will never go back to stock 8DN belt just for longer life. My performance gain was real time experience. I experienced exactly what is listed below high holeshot rpm then pulled down once belt grabbed and finished shifting out.
The stock 8DN belt feels like it hooks better but that is due to slip and hook condition. Example you hit a corner wack the throttle belt is slipping and then it hooks feeling more rocket like. The 8DN belt can also wear grooves in your sheave face if kept at a specific area for long periods.
I'll stick with the performance gain on a softer belt and maybe shorter life span. A clutch kit with stock belt still leaves alot on the table and inefficiency as well. A cool clutch is a happy clutch and that equals better performance good luck in your choices.
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