Wht is the spring rate for a cat yellow green primary spring?

There are acually two, yellow green. 0146-526 (most common) 134@2 3/8" and 264@ 1 3/8" The other is 0646-147 114@ 2 3/8 and 264@ 1 3/8 These are in pounds.

Drive Clutch Springs
P/N.......(Rate @ 2-9/16") (Rate @ 1-5/16") Color

0646-148 53 lb 224 lb Red/Blue
0646-150 72 lb 188 lb Silver
0646-149 74 lb 228 lb Red
0646-376 75 lb 275 lb Gold
0646-147 114 lb 267 lb Yellow/Green
0646-673 114 lb 267 lb Yellow/Green (titanium)
0646-155 121 lb 240 lb Purple
0646-229 122 lb 285 lb Yellow/White
0646-248 143 lb 290 lb Orange/White
0646-684 158 lb 290 lb Black
0646-376 75 ob 275 lb Gold

------------------------------------------
Driven Clutch Springs
P/N........Color..Rate @ 1-7/16" compression

0748-025 Green 157 lb
0648-114 Red/White 116 lb
0648-674 Red/White 105 lb (titanium)
0148-227 Yellow 92 lb
0648-012 Blue 79 lb
0648-010 White 58 lb
0148-176 Black 42 lb
0648-702 Red/Black **140-240 lb @ 1.1-2.2".

Saberkitty, where did you pull that chart from? The ones I listed were out a old cat repair manual. I see they are using different measurements and have changed a few part #.

2004 service manual