Automed
New member
Ultimax belts how good are they. They are hard so they don't slip as much, so that would mean less heat on my primary clutch and less slipage again witch means more HPs to the track. Means go faster faster! right???
snowfoxsx
New member
every dayco i tried blew up, shredded or self destructed for some reason? i put on a yamaha belt and never blew one since, with no adjustments either! stick to factory. i also had an over rev happen with dayco belts. same for gates belts, no luck either. to me a harder belt would mean more slip since it takes more pressure to squeze it.
dmaxx
Member
Never had a problem with the Ultimax 3. Many guys prefer them over the OEM belts, they have a softer compound than the stiff 8DN.
snowfoxsx
New member
i never tried the 3 yet, just the max2. it may be different!
The factory belts are alot harder than the Daycos. Softer belt means less slip. Harder belt last longer, but heats up more. I also have had high rev issues with the daycos. I get about 5000 miles+- out of the factory belts. Stick with factory.
Automed
New member
Ooops! I guess I got the soft hard thing backwards...
So the harder Ultimax would cause my primary cluth to run hotter!!! and would be bad right?
So the harder Ultimax would cause my primary cluth to run hotter!!! and would be bad right?
Hebi
New member
I ran Dayco Ultimax 2s on my '99 Polaris 700 XC SP. The only reason I did was because the Polaris belt was $80 and the Dayco was $65.
I never had an issue with Dayco belts. In fact, after I sold the 700 my father ran that same belt on his '98 600 XC for a full 2 years. I think that belt went with that sled when he sold it.
I have no problem with Dayco belts, the one I had was bought at a snow show for $45 and it lasted over 2,000 miles being used on high-torque engines (Polaris domestic twins).
I ran a Gates belt on my '90 Phazer for 2 years and it was never a problem. The one I used on the Phazer was just a cheap $20 belt.
The reason I didnt use a Yamaha OEM belt on the Phazer was because I wasnt able to find a Yamaha dealer who could even order one, much less have any in stock.
Hebi
I never had an issue with Dayco belts. In fact, after I sold the 700 my father ran that same belt on his '98 600 XC for a full 2 years. I think that belt went with that sled when he sold it.
I have no problem with Dayco belts, the one I had was bought at a snow show for $45 and it lasted over 2,000 miles being used on high-torque engines (Polaris domestic twins).
I ran a Gates belt on my '90 Phazer for 2 years and it was never a problem. The one I used on the Phazer was just a cheap $20 belt.
The reason I didnt use a Yamaha OEM belt on the Phazer was because I wasnt able to find a Yamaha dealer who could even order one, much less have any in stock.
Hebi
WrdAl
New member
Automed,
The OEM 8DN belt is harder than the Ultimax3 belt. Harder belts slip more, generating higher heat. Softer belts slip less thus generating less heat. The 8DN belt will last a long time but does cause some problems depending on what type of riding you do. I have 2 Mtn Maxes that I have bought used over the last 3 seasons. The 2000 I bought last year, the previous owner had to replace a blown primary before he sold it. The 99 I got before that has signs that the primary needs to be replaced/rebuilt. Too much heat when the sleds are under heavy load, like powder riding. If you ask around, I bet trail riders don't have any problems, but the mountain riders do.
The OEM 8DN belt is harder than the Ultimax3 belt. Harder belts slip more, generating higher heat. Softer belts slip less thus generating less heat. The 8DN belt will last a long time but does cause some problems depending on what type of riding you do. I have 2 Mtn Maxes that I have bought used over the last 3 seasons. The 2000 I bought last year, the previous owner had to replace a blown primary before he sold it. The 99 I got before that has signs that the primary needs to be replaced/rebuilt. Too much heat when the sleds are under heavy load, like powder riding. If you ask around, I bet trail riders don't have any problems, but the mountain riders do.
Ive used them all. Actually the stock yamaha belt went the farthest and lasted the longest...Its now my spare and I smoke belts running powder and thats my most reliable one. Brent
yamie 1
New member
i put almost 10,000 miles on my 2000 v-max 700 with the original belt and only changed it because of guilt. kept it for a spare. did have shims put in once.
seanmurphy26
New member
i run the dayco 3 here no problems, last one i ran i got 2000 miles on it
seanmurphy26
New member
stock belt will always be best if you ask me though.
LoneViper
New member
I dont know, I've ran the stock belt and the clutches get some kind of hot. They are hard and slip especially in deeper snow with a load. Ultramax 3 doesn't run nearly as hot. As far as longivity, if I get 800 or 900 miles out of any belt I feel like I've done good.
yamaholic22
Active member
800 or 900 is good? yikes
WrdAl
New member
Holic,
Look where LoneViper is from, Montana. I'll bet that 8-900 miles could be a whole season. Flatlanders are soft
, they expect 3-4 years to a belt and anything less than 200 miles a day is a bad day. A good day in the mountains might be 50-60 miles, a great day might only be 25. Mountain/Powder riding either eats belts or clutches, the 8DN belt runs HOT under heavy load from slipping. It'll outlast the clutch.
Look where LoneViper is from, Montana. I'll bet that 8-900 miles could be a whole season. Flatlanders are soft
, they expect 3-4 years to a belt and anything less than 200 miles a day is a bad day. A good day in the mountains might be 50-60 miles, a great day might only be 25. Mountain/Powder riding either eats belts or clutches, the 8DN belt runs HOT under heavy load from slipping. It'll outlast the clutch.
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signmaker
New member
Ultimax Belts
Hello everyone,
I am new to posting on totallyamaha and this is my first post. I have been a visitor here for the past year or so and have found the knowledge very helpful. I'm a veteran sledder with over 30 years of riding experience. I've been riding yamaha for about 15 years now and agree with you all that when you factor everthing overall, yamaha is the best manufacturer of snowmobiles, at least in my opinion. Anyway, I have used alot of your knowledge to help me out and I thought it would be about time for me to offer some of my knowledge back to you.
My experience is that the 8DN stock belt is literally bulletproof. I have never, and don't know anyone who as, blown one of these belts apart. Believe me, I have literally tortured these belts. The compound is harder and it is a very durable belt. But, recently I tried using an Ultimax 2 and found that my sled accellerated noticeably harder because of the softer compound. It also knocked my RPM's down 1 or 2 hundred by the stock guage (2000 sxR piped, clutched and other mods). I purchased the new Ultimax 3 (Dayco's HPX--they both are top cogged) at my, oh your going to laugh, local Champion Auto for $39.95 on sale. I got it late spring of this year and we didn't have any snow at the time so I haven't tried it yet. They claim it will run 10 degrees cooler than the ultimax 2 though. As far as any belt getting hot you half to take into consideration that your clutches have to be in good alignment and anytime you work the sled hard in powder or wet snow any belt is going to get hot. Another thing is how many times have you gotten warranty from yamaha on a belt? Dayco at least has a warranty and they do stand behind them. Again....your clutches need to be in good alignment and you have to use good judgment as far as the torture you want your belt to endure. My advise is to have one of each with. The Dayco for groomed trails and the 8DN for breaking trails. Hope this helps.
Oh, by the way, anyone know where I can get a "crotch kit"? I heard they are a really good performance enhancer.
Hello everyone,
I am new to posting on totallyamaha and this is my first post. I have been a visitor here for the past year or so and have found the knowledge very helpful. I'm a veteran sledder with over 30 years of riding experience. I've been riding yamaha for about 15 years now and agree with you all that when you factor everthing overall, yamaha is the best manufacturer of snowmobiles, at least in my opinion. Anyway, I have used alot of your knowledge to help me out and I thought it would be about time for me to offer some of my knowledge back to you.
My experience is that the 8DN stock belt is literally bulletproof. I have never, and don't know anyone who as, blown one of these belts apart. Believe me, I have literally tortured these belts. The compound is harder and it is a very durable belt. But, recently I tried using an Ultimax 2 and found that my sled accellerated noticeably harder because of the softer compound. It also knocked my RPM's down 1 or 2 hundred by the stock guage (2000 sxR piped, clutched and other mods). I purchased the new Ultimax 3 (Dayco's HPX--they both are top cogged) at my, oh your going to laugh, local Champion Auto for $39.95 on sale. I got it late spring of this year and we didn't have any snow at the time so I haven't tried it yet. They claim it will run 10 degrees cooler than the ultimax 2 though. As far as any belt getting hot you half to take into consideration that your clutches have to be in good alignment and anytime you work the sled hard in powder or wet snow any belt is going to get hot. Another thing is how many times have you gotten warranty from yamaha on a belt? Dayco at least has a warranty and they do stand behind them. Again....your clutches need to be in good alignment and you have to use good judgment as far as the torture you want your belt to endure. My advise is to have one of each with. The Dayco for groomed trails and the 8DN for breaking trails. Hope this helps.
Oh, by the way, anyone know where I can get a "crotch kit"? I heard they are a really good performance enhancer.
Allvipedup
New member
Oem
All the boys at Bender insist that you stick with Yamaha belts. They use them on all their race sleds. They say they last longer, pull just as hard and are half the price...wasn't a hard decision for me. I have been riding Yamaha since 1979, 6 yami's in all, beleive it or not, I've never blown an OEM belt. Obviuosly I replaced them, but no shreds. Now your thinking...I don't ride hard...nope, not the case here.
All the boys at Bender insist that you stick with Yamaha belts. They use them on all their race sleds. They say they last longer, pull just as hard and are half the price...wasn't a hard decision for me. I have been riding Yamaha since 1979, 6 yami's in all, beleive it or not, I've never blown an OEM belt. Obviuosly I replaced them, but no shreds. Now your thinking...I don't ride hard...nope, not the case here.