Some information and experience gleaned with my PP100 (REDHOTBITCH) over the years I collected....
Engine Checks from Blackhawk to tell if your PP100 is going to implode, maybe
Mud Flap installation from Chilhowee Leathers
Oil Filters for PP100
PP100 on 99 Chief
added: chain conversions, Chilhowee instructions, fork oil changing, oil pump replacement, fat tires, understanding motorcycle batteries, wheel bearings