1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 194Get this manual
REAR WHEElBRAKEDRIVE MECHANISM
Install the rubber seal onto the brake drum cover
Install the brake drum cover using the six bolts
RUBBER SEAL
I nstall the washer
WRENCH SET, 41 mm 079169580300 or AXLE HOLDER WRENCH Q791S958020A {U.S.Aonly}
Tighten the brake drum inner nutTORQUE35-45 Nm (3.5-4.5 kgm, 25-33 ftlb)
Apply threadsor equivalent to the shaft