1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 160Get this manual
CILUTCH Che;c,k th eight springs for wea damageand replace ir necessa ryMeasure the length of the weight spring
SEIRVICE LIMIT: 22.5 rnm 1D.89ln)1
fiep la,ce the spring ifthey are longer than the s.ervice lim it
Qra,nksihaft at the ptrmary drive gear Measme th crankshaft 0.0at two locations as shown