2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 202Get this manual
FRONT WHEELIBRAKE SUSPENSIONSTEERING ASSEMBLY Install the tire onto the rim, where the rim shoulder width is the narrowest, to simplify installationClean the rim bead seat and flangesUse only wa rer as lubflcanr when removing or moun tIng lres_ Soap or some mounting lubncants may leave sr,ppery resIdue which can cause the fire to shih on the rim and lose air pressure during rIdrng
Apply clean water to the rim flanges, bead seat and base
Install the valve core in the valve stemInflate the tire to seat the tire beadDeflate the ti reWait hour and inflate the tire to the specified pressureRECOMMENDED TIRE PRESSURE (FrontRear): 20 kPa (0.20 0.03 kgf cm2.9 0.4 psi)