JEFF - Must be you or your monitor, I see no yellow on Bob's spring. There is a mostly rust colored with a few yellow paint flecks flat washer between the roll pin & spring.
The comment Bob made about the clutch being hard to depress makes me think that spring is the Red die spring pullers use. Explains the broken roll pin & worn-out T/O bearing too.
If I get time today I'll compare my red die spring to an OEM spring.
Just for the sake of clarification, in all my years of purchasing, the HARDEST part to switch suppliers on is a spring regardless of type, compression or tension. Every spring supplier has their own unique method of wrapping wire, the temper of the steel, source of the steel, and it all effects the final pounds of force per inch of compression or elongation of a spring. I always found that if you had a suppler making you a good usable spring, no quality or delivery problems, just use them and be happy. If you switch suppliers, you will have to factor in many engineering hours testing the different forces the springs other suppliers would make, the supplier will have to make several sample runs with different size wire, different coil pitchs, maybe different over-all free lengths, prints will have to be re-drawn... all adds tremendously to the cost of a supplier change to save a penny on a spring.
And when I gas up my 982, the cap w/fuel gauge gets set on the seat.