13. FUEL SYSTEM/CARBURETOR/
FUEL PUMP/ FUEL TANK
SERVICE INFORMATION
GENERAL INSTRUCTIONS
· When working with gasoline, keep away from sparks and flames.
· Note the locations of O-rings when disassembling and replace them with new ones during
assembly.
· Before float chamber disassembly, drain the residual gasoline from the float chamber.
· Do not try to disassemble the auto bystarter.
· When assembling the vacuum chamber and air cut-off valve, be careful not to damage the
diaphragms.
· All cables, fuel lines and wires must be routed and secured at correct locations.
· When removing the fuel tank, keep sparks and flames away from the working area.
· When removing the fuel tank, the remaining fuel in the tank must be lower than of the fuel tank
capacity to avoid gasoline overflowing.
· Fuel tank capacity: 8.0 liters
SPECIFICATIONS
BC50AA
Type CVK
Size of bore (mm) 30
Main jet NO 108#
Pilot screw opening 2
Piston diameter (mm) 28.8
Idle speed 1700
Throttle type Butterfly type
Fuel pump output 40cc/1700rpm/10 Seconds
SPECIAL TOOLS
Float level gauge
Fuel unit remover
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