1985-1986 Honda ATC250R Shop Manual, Page 94Get this manual
CLUTCHGEARSHIFT LINKAGEKICK STARTER
Replace the clutch discs if they show signs of scoring or discolorationMeasure the disc thickness
SERVICE LIMIT: 2.85 mm (0.112 in) NOTE-I ?Iutch discs and plates shou Id be replaced as set if anyone is beyond the service limit