1981-1984 Official Honda ATC250R Shop Manual, Page 186Get this manual
'82 ATC250R ADDENDUM
ATe 250R
1GENERAL INFORMATION
SPECIFICATIONS
Dimensions Dry weight Weight distribution Front Rear Frame Rear brake Fuel capacity Engine Electrical Compression ratio Spark plug USA model 35 Kg (298 Ib) 53 Kg (117 Ib) 82 Kg (181 Ib) Single disc 8.4 lit (2.2 US gal1.9 Imp gal) 6.7:1 BR8ES (NGK)QN-3 (CHAMPION)