Hitting Rev limiter on Top end

[NytroPturbo]

I have a 2011 XTX
Push turbo / 190HP
Primary arms - Dalton quick adj wtih 65.2 gr wt.
Blue/brown/Blue - Stiffest spring
Machined overdrive by SB.
Secondary stock white spring
SB helix F1 46/39
Twist 80 deg (6-2)
Flatlander sled in Wisconsin.
1.25 inch track.

Problem- Keep hitting off rev limiter on top end (WOT).

I tried adding weight to primary as well as using a softer primary spring. No chg.

Would increasing my helix angle fix this? Say 50 deg straight?

Thanks.

 

[ClutchMaster]

Take some twist outa that secondary man

 

[ClutchMaster]

Make sure the bushings are in good shape 2

 

[ClutchMaster]

How many miles belt?
Do an alignment check also
How much weight did you add?

 

[hyprst]

try a steeper helix maybe a 47/41?

 

[Woody255]

I would throw a bunch of weight at it until the R's come down, then slowly remove a few grams as necessary until you find your desired RPM. I would avoid adjusting the secondary too much except to fine tune.

 

[ClutchMaster]

Yamaha silver secondary spring with 6-1 wrap to start off, should get you pretty close.

 

[ClutchMaster]

Woody is right try more weight in conjunction with the spring. I prefer the lower finish angle because it almost always gets a better top speed, and no slipping.