Help - I need the rear spring dimensions and spring rate for the stock rear suspension rear shock spring. The shock piston siezed and I replaced the unit with a Comet Ride-on Shock/spring assembly. Unfortunately I tossed my OEM shock and spring. The new unit bottoms out on mild bumps. I thnk the sping is wrong but can't verify it. Yamaho only sells spring/shock combination -very pricey. I'd like to find an aftermarket spring but don't have any way bto match it up.