FYI: All the following machines used that same spring. so search E-bay or post in the classified for a spring from any one of the following:
1984 ATC110 A - REAR BRAKE DRUM
1984 ATC125M A - REAR BRAKE DRUM
1984 ATC200M A - REAR BRAKE DRUM
1984 ATC200S A - REAR BRAKE DRUM
1985 ATC110 A - REAR BRAKE DRUM
1985 ATC125M A - REAR BRAKE DRUM
1985 ATC200M A - REAR BRAKE DRUM
1985 ATC200S A - REAR BRAKE DRUM
1985 TRX125 A - REAR BRAKE DRUM
1986 ATC200S A - REAR BRAKE DRUM
1986 TRX125 A - REAR BRAKE DRUM
1986 TRX200SX A - REAR BRAKE DRUM
- Frank
1984 200ES Big Red
1985 350X (x2)
1986 350X
1986 250SX
1984 Auto-X
1984 ATC70
1985 ATC70