2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 93Get this manual
LUBRICATION SYSTEM ASSEMBLY STOPPER PLATE SPRING PUMP BASE (Scavenge side)
RELIEF VALVE-_ _-'
COTTER DRIVE PIN
Install th following into the pump body: outer rotor inner rotor drive pin and shaft with the stepped end facing pump base (inside) dowel pins
Assemble the pump body and spacer
DRIVE PIN Install the following onto the pump shaft and into the pump base: thrust washer drive pin outer rotor inner rotor