Polaris clutch on yamaha, who has one?

[jlparker77]

I am needing some tuning info from anyone who has used one. I will use one on a 05 vector mountain, but can anyone give me some info about what you use for weights and spring. I just need a good starting point. about 5000 feet elevation.

thanks

Jade

p.s. I don't want a discussion about the yamaha clutch vs. the polaris clutch. I am aware of both clutches ups and downs.

 

[enticer294]

Polaris on yamaha

Put 96xlt primairy on 06 Apex Almondyellow spring with 62gram weights withtop end RPM cut ran at 10700. For a vecter I would start with same spring but 64or 66 grams,but it depends what primiray you have it has to have 30mm taper I would look for xlt or xcr not new twin cly.primiray they have a differant taper and dual angle faces.

 

[jlparker77]

Where does this put your engagement? doesn't your apex have a gear reduction between crank and clutch? I know my phazer does and I thought the apex was similiar that way. I have a almond/gold sitting on the shelf, but that seems like a lot of weight (64 - 66) I don't know if i have anything that heavy, but I will look. The clutch I am looking at using is from the late 90's, It does have the right taper.

 

[enticer294]

Polaris on yamaha

You start heavy and cut them back or go to lighter weight shorter spring you may get close but try alot of combs to make share. I ran the same comb on my Apex on my94Vax 600 at 7900 RPM

 

[jlparker77]

what is your elevation enticer?

 

[enticer294]

Polaris on yamaha

7 to 900 ft