Dalton flyweight rivet?

If you weld on, you can always grind some off... Once you drill your kinda stuck, unless you can add or subtract with a set screw system.
 
So I am sure I know the answer already...but is there any way to adjust anything on these clutches to get more RPM? The only thing I know to adjust is the spring tension on the secondary...I'm in 1 and 6 right now.

The reason I ask is I can't get my sled over 9700 RPM, and I'm lost as where to go next.

I have a Dalton kit in it now with non adjustable weights.
 
How much do your weights weigh?
You can use a stiffer primary spring...what's in there now?

I wanted to drill my weights to use Yamaha rivets to add weight.
 
I only have the stock primary spring....what is a good step up ? Colour to order wise I mean.... and do you just order from Yammi, or aftermarket. Doo clutches I just got everything from Doo Dealer
 
I use a dalton blue spring..but the engagement is a touch high. I don't mind it but it's kind of a personal preference. I'm running a 51/43 helix which is working fine but I am losing topend because of lack of weight in the primary. I need to spend some time to set this thing up...but I'm too busy riding it lol.
 


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