2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 261Get this manual
BRAKE SYSTEM Make sure the pad spring is installed in place as shown
Replacement
pads come wifh
I16Wsroms
Install the new pads in he caliperAlign the pad pin holes by depressing the pads against the caliper, and install new lock washer
and pad pins