Your springs may be worn out,you may be to heavy for the spring rate you have.Have you tried adjusting your compression damping?If you remove the rubber plugs from the bottom of your forks and turn the adjuster in with a flat screw driver (there 16 "clicks",so dont try to force the adjuster) it will make it compress the forks slower.But Im sure you need new springs.Yes clutches do wear out on any bike,try adjusting freeplay at the lever to 1/8" about and keep fresh tranny oil in it,I run gear saver from Bel-Ray.