1985-1986 Honda ATC250R Shop Manual, Page 40Get this manual
3FUEL SYSTEM SERVICE INFORMATION TROUBLESHOOTING FUEL TANK 3-2 3-2 3-3 3-5 REED VALVE CARBURETOR THEORY CRANKCASE BREATHER CARBURETOR '85: AFTER '85: 3-7 3-8 3-16 3-24 3-25
GENERAL
AIR CLEANER CASE
SERVICE INFORMATION
Use caution when working with gasolineAlways work in well-ventilated area and away from sparks or flamesThe float bowl has drain plug that can be loosened to drain residual fuelWhen disassembling fuel system parts, note the locations of the a-ringsReplace them during assembly
SPECI ICATIONS
Fuel tank capacity Fuel Oil Fuel: Oil pre-mix ratio Carburetor: 9.8 lit(2.6 U.Sgal 2.2 Impgal Premium or leaded gasoline (Octane rating 92-100, RON) Honda 2-STROKE 01 or equivalent 20: 1
Identification mark _ Type
PE37A Piston valve-
Venturi diameter
34 mm (1.3 in) turns out #142 #52
Piston valve 34 mm (1.3 in) 2-14 turns out 3rd groove #145