1981-1984 Official Honda ATC250R Shop Manual, Page 111Get this manual
ATC 250R TIRE REMOVAL
Deflate the tireBreak both tire beads looseNOTE Do not-use tire from the rim flange; this could damage the rim seal and cause an air leakIf it is difficult to break the beads or if rust has formed on the rim, apply soap and water solution or tire mounting lubricant to the rim periphery
FRONT WHEELFRONT FORKSTEERING