1985-1986 Honda ATC250R Shop Manual, Page 219Get this manual
REAR FENDERSEATEXHAUST SYSTEM BOLT
EXHAUST CHAMBER REMOVAL
Remove the following:seat and rear fender (Page 14-1)- fuel tank (Page 3-3)'85:exhaust chamber mounting bolt and springAFTER '85:exhaust chamber mounting bolt
SPRINGS Remove the exhaust chamber springsRemove the exhaust chamberjoint mounting