8dn belts what's the reason?

[yamamarc]

I've been searching around the forum and noticed many viper owner have been switching to the 8dn belt! I know this topic came around in the past here so please don't be annoyed with my newbie question? I'm buying a new belt this weekend for my boys trip up north and was wondering if I should switch to the belt in question?
I noticed that they are cheaper then the original! Is this the main reason you guys switched?
If I decided to switch I read that you have to add 1 extra washer(same thickness) to the three bolts on the back of the secondary?
Are the washers standard or do you have to get them from the dealer?

Thanks and sorry for bringing up a old repetitive subject just trying to get a clear understanding for switching
to the 8 dn.
Marc

 

[SaskAttack]

Try reading clutching on the cheap, a good read and the reasons are explained within.

 

[MrSled]

Maybe ask this question in one of those old threads instead of starting another repetitive thread.

 

[jpr-ltx-dx 2015]

I've been searching around the forum and noticed many viper owner have been switching to the 8dn belt! I know this topic came around in the past here so please don't be annoyed with my newbie question? I'm buying a new belt this weekend for my boys trip up north and was wondering if I should switch to the belt in question?
I noticed that they are cheaper then the original! Is this the main reason you guys switched?
If I decided to switch I read that you have to add 1 extra washer(same thickness) to the three bolts on the back of the secondary?
Are the washers standard or do you have to get them from the dealer?

Thanks and sorry for bringing up a old repetitive subject just trying to get a clear understanding for switching
to the 8 dn.
Marc

stick whit the original one,i have try all what is on this for 8dn and you will gaine noting to go whit 8dn except you will need to mess whit all your clutch set up.

 

[yamamarc]

Maybe ask this question in one of those old threads instead of starting another repetitive thread.

Sorry I was going to post in a section "just the facts" but it states that it's a "FAQ" thread so I did want to post there!
If possible you can move it in that area if it's appropriate for the section

 

[yamamarc]

I just don't have a clear understanding why guy's are switching? I will go back and read some more. Is it just guy's with moded sleds or are guys with stock ones doing this!

 

[Srxspec]

The 8DN belt is more consistant as the belt gets more miles on it. The 8JP will work great for 400 to 500 miles, after that the RPM will begin to change and fluctuate. The 8DN belt will stay consistant from the day you put it on new until the day you decide to take it off, doesn't matter how many miles it gets on it.

Performance wise, a brand new 8JP versus a brand new 8DN, there is no performance difference. It's after you get 400 to 500 miles on the belts where you will start to see the 8DN belt be better.

 

[yamamarc]

The 8DN belt is more consistant as the belt gets more miles on it. The 8JP will work great for 400 to 500 miles, after that the RPM will begin to change and fluctuate. The 8DN belt will stay consistant from the day you put it on new until the day you decide to take it off, doesn't matter how many miles it gets on it.

Performance wise, a brand new 8JP versus a brand new 8DN, there is no performance difference. It's after you get 400 to 500 miles on the belts where you will start to see the 8DN belt be better.

BIG thank you for clarifying this!!! We do high miles so this is probably a better option!!

 

[csederlund]

The 8DN belt is more consistant as the belt gets more miles on it. The 8JP will work great for 400 to 500 miles, after that the RPM will begin to change and fluctuate. The 8DN belt will stay consistant from the day you put it on new until the day you decide to take it off, doesn't matter how many miles it gets on it.

Performance wise, a brand new 8JP versus a brand new 8DN, there is no performance difference. It's after you get 400 to 500 miles on the belts where you will start to see the 8DN belt be better.

Is this the same with 8JP aftermarket equivalent?

 

[yamamarc]

The 8DN belt is more consistant as the belt gets more miles on it. The 8JP will work great for 400 to 500 miles, after that the RPM will begin to change and fluctuate. The 8DN belt will stay consistant from the day you put it on new until the day you decide to take it off, doesn't matter how many miles it gets on it.

Performance wise, a brand new 8JP versus a brand new 8DN, there is no performance difference. It's after you get 400 to 500 miles on the belts where you will start to see the 8DN belt be better.

As for the extra washers are there specific ones to use?

 

[rbell14]

I have 700+ miles on 8JP and have no issues. The belt does create more dust but it also seems there is a bit of tinkering to be done with 8DN. I will continue to monitor my stock belt situation.

More discussion can be found in this thread too.
http://www.ty4stroke.com/threads/losing-rpm-and-not-holding-normal-top-speed.126678/

 

[TD Max]

As for the extra washers are there specific ones to use?

Yamaha # 90201-061H1-00 0.5mm shim.

Yamaha # 90201-06037-00 1.0mm shim.

3 of the .5 mm and 6 of the 1.0mm


This way you can hit all the steps to 2.5mm and at 3 mm you may as well just take out the bolts.

 

[yamamarc]

Yamaha # 90201-061H1-00 0.5mm shim.

Yamaha # 90201-06037-00 1.0mm shim.

3 of the .5 mm and 6 of the 1.0mm


This way you can hit all the steps to 2.5mm and at 3 mm you may as well just take out the bolts.

thank you!!!

 

[skidooslayer687]

The 8dn is more consistant with the rpm.... So if your trying to dial in clutching it's somewhat hard to dial in if your getting different rpm readings everytime which is what I was getting. I switched, rpm is spot on every time and consistant and not near the belt dust either, as for tinkering, if you consider having to add some washers to the secondary majorly changing your clutch setup I guess it would be tinkering... It's fairly straight forward

 

[yamamarc]

The 8dn is more consistant with the rpm.... So if your trying to dial in clutching it's somewhat hard to dial in if your getting different rpm readings everytime which is what I was getting. I switched, rpm is spot on every time and consistant and not near the belt dust either, as for tinkering, if you consider having to add some washers to the secondary majorly changing your clutch setup I guess it would be tinkering... It's fairly straight forward

one thing I do notice (but it may be from the white tunnel?) is allot of black dust at the front left foot rest with 700+kms)!