1998-2004 Honda Foreman 450 factory service manual, Page 170Get this manual
CLUTCH Check the weight springs for wear or damage, and replace if necessaryMeasure the length of the weight spring
SERVICE LIMIT: 22.5 mm (0.89 in) Replace the spring if they are longer than the service limit
Crankshaft at the primary drive gear Measure the crankshaft 0.0at two locations as shown