2003 Kawasaki KLF250 Service Manual., Page 108Get this manual
5-12 ENGINE RIGHT SIDE Clutches
Clutch Spring Free Length Measurement
If any of the springs [A] is shorter than the service limit, it must be replacedClutch Spring Free length Standard: 37.2 mm (1.46 in Service Limit: 35.7 mm (1.41 in