YPZ and YXR Primary/Secondary Springs and Helix Chart

[NorthofSixty]

If anyone else finds this useful maybe it could be added to the tech section for those playing with vintage stuff from the 90's. This predates the reverse cam secondary era so it applies to those sleds running YPZ as well as early YXR clutching.

 

[BornYamaha]

More Old Tuning Parts.

Here are some more from the really old stuff. The springs work in the YP clutch just fine. Many are not available to order but can have a friendly dealer check other dealer's stock. I found a couple that way last year.

 

[NorthofSixty]

Thanks, great help for us vintage guys trying to match up spring rates. Hopefully it will get added to the tech section.

 

[A couple of bucks]