2006-2009 Suzuki LT-R450 Service Manual, Page 94Get this manual
CLUTCH DRIVE PLATE NOTE: Wipe off engine oil from the clutch drive plates with clean ragMeasure the thickness of drive plates using the vernier calipers If the drive plate thickness is found to have reached the limit, replace it with new one
Drive plate thickness (No.1NO.2): Service Limit: 2.77 mm (0.109 in)
nuh 09900-20101: Vernier calipers
Measure the claw width of drive plates using the vernier calipers Replace the drive plates found to have worn down to the limit
Drive plate claw width (No.1No.2): Service Limit: 13.35 mm (0.528 in)