How to make belt reach top of primary

[Yamitriple]

Don’t want to add anymore weight to primary weights, how can I get belt to fulling “shift out”

 

[A couple of bucks]

What is your wrap at?

 

[Yamitriple]

What is your wrap at?

89l weightscwith 6.1 g rivet 15 mm rollers standard spring with 1 engagement shim, 45 degree helix set to 60 wrap with standard spring. Eng 3600-3800 max rpm 8100-8200

 

[A couple of bucks]

If we are talking about the 97 Vmax700(a redhead) that is in your profile, take your helix wrap to 70. Your at only 81-8200 Rs anyway.

 

[Vincent]

Yes ideally your looking for 8300 to 8500 rpm

 

[A couple of bucks]

Not that this is the proper way to get to peak RPMs, but you will probably have to go to 80 to get close to 8500.

 

[Yamitriple]

Not that this is the proper way to get to peak RPMs, but you will probably have to go to 80 to get close to 8500.

Im running power inc center dumps. I also have a 46/41 helix I can try. Not much wiggle room on rpms. They fall off hard after 82

 

[tomseal6]

I think that 46/41 will get you a lot closer

 

[Yamitriple]

It’s supposed to be a 47 but the angle is a little shallow. I’ll try that at 60. Don’t really wanna mess with rpms too much

 

[Yamitriple]

Thanks for the help, it’s about 1/8 to a 1/4 shallow. Just was always told it should reach the very top. Is it different with Yamahas?

 

[A couple of bucks]

Anywhere from .5mm below level to 1.5mm above level. This measurement is for a triple only.


I hate to be Mr. Obvious but ..... how old is the belt? New measures 1 & 7/16s on top.
An easy way to measure a belt below level is a ruler and ..... a dime,quarter,nickel or whatever.

 

[Yamitriple]

Belt is new a rides where it should in secondary, little nubs on outside of belt are sticking over the edge a hair.

 

[A couple of bucks]

Have you SHARPIEd your clutch and went for a ride? If not , do so and snap a picture of where the Sharpie has worn off.

 

[Yamitriple]

 

[Yamitriple]

It’s not too bad but it still seems like I should be getting a lil more. Correct me if I’m wrong

 

[Vincent]

I think you chasing a non existing problem.

 

[Yamitriple]

I think you chasing a non existing problem.

Hahaha probably, just wasn’t sure if my belt should be squeezing all the way to the top or not.

 

[A couple of bucks]

Looks normal to me.

 

[A couple of bucks]

Now if your looking for better of the line performance, get that belt to ride higher in the secondary. It sounds like you are starting off ........ well in 2nd gear. This is based on your comments in post #10. Might even be 3rd gear if it is in fact at -1/4.
https://totallyamaha.net/showthread.php/79363-belt-sits-to-low-in-the-secondary?highlight=Circlip

 

[Yamitriple]

My secondary is right where is should be, I just wasn’t sure if my belt should ride higher in my primary at wot. Try and squeeze a little more out of it. If it looks right than it’s right I just didn’t know.