I want to replace the clutch springs when I get round to refitting the clutch. Having a quick look around I can only find EBC Heavy Duty springs. I've had these on one of my SV engines and found the clutch operation much heavier particularly around town. As the TZR isn't an engine with massive power and tuning I'm not sure I need to upgrade them as such. So any suggestions on the springs to use? Yamaha I expect can supply me with some, but I expect they will be rather expensive...
The springs I use are the ones used by the F3 kit.
Yamaha part number 90501-23700-00 as used in the XT225.
You should be able to buy them for about $4.50 each online.
From memory, I think EBC make some kits.