I wish I could... The only thing in my stash that comes close are a few ASP valvesprings for a 91 fourstroke. Those are (way) too short and wound a touch too wide. Because I tried to find alternative suppliers for that kind of springs (the reason I have those in my stash was the overhaul of an OS 91 for which original springs were not availlable anymore and I hoped the ASP versions would fit, the ASP being an OS clone) I know for a fact that if I want springs of that wiregauge, I have to wind them myself because no commerical source has anything remotely close, and it is possible to have springs custom made to specs, but that is surprisingly expensive. But I also allready know that I cannot wind springs of that gauge that tight with the equipment availlable to me. I tried.

Hence the O-rings on the outside of that plunger. What I can do, is have a buddy of mine, who is a CNC expert, make a swingarm with a different linkage that provides a more progressive springrate. But that will cause all kind of trouble with the shape and size of the wheelbay...

Tomorrow I'll know if the O-rings will work.

.