1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 242Get this manual
REAR WHEELSUSPENSION If the bead breaking is difficult with the narrow end (A side) of the breaker arm, use the wide end (B side) of the arm and repeat the procedure on the previous pageAfter removing the tire from the rim, cut the valve off at the bottom, being careful not to damage the rimNOTE Be sure to replace the valve with new one whenever the ire is removed from the rim(1) WIDE END (B SIDE)
TIRE REPAIR
NOTE Use the manufacturer's instructions for the tire repair kit you are using If your kit does not have instructions, use the procedures provided here
Check the tire for puncturing objectsChalk mark the punctured area and remove the puncturing object Inspect and measure the injuryTire repairs for injuries larger than 15 mm (58 in) should be section repairSection repairs should be done by professional tire repair shopIf the injury is smaller than 15 mm (58 in), proceed with the repair as described here