2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 358Get this manual
FRONT WHEELSUSPENSIONSTEERING TIRE REPAIR NOTE: Use the manufacturer's instructions for the tire repair kit you are usingIf your kit does not have instructions, use the procedures described belowCheck the tire for puncturing objectsChalk mark the punctured area and remove the puncturing objectsInspect 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
Install rubber plug into the injury as follows: Apply cement to plug inserting needle and work the needle into the injury to clean and lubricate itDo this three timesDo not let the cement dryInsert and center rubber plug through the eye of the inserting needleApply cement to rubber plugPush the inserting needle with plug into the injury until the plug is slightly above the tireBe careful not to Twist the needle and remove it from the tire; the push the plug all the plug will stay in the tireway into the tire to prevent from falling insideTrim the plug mm (14 in) above the tire surface