4. FUEL SYSTEM SYM
4-2
PRECAUTIONS IN OPERATION
General Information
Warning
Cautions
Specification
Item Specification
Speed limited:45km/h 80#
Speed limited:25km/h 80#
Main jet
Speed limited:30km/h 80#
Pilot Jet 33#
Needle Jet
￠2.1 mm
Level in float chamber
24.5±0.5 mm
Float needle
￠1.6 mm
Mass of float
7.2g±0.1 g
Idle speed 2100±100 rpm
Slow jet 35#
Fuel quantity adjustment screw 1 1/2±3/4 turns
Jet needle D
Throttle handle free play 2~6 mm
Torque value
Fuel valve tightening nut: 1.5~2.0 Kgf-m
Tool
Special service tools
Vacuum/air pressure pump
General service tools
Fuel level gauge
Gasoline is a low ignition point and explosive materials, so always work in a well-ventilated
place and strictly prohibit flame when working with gasoline.
ot bend or twist throttle valve cable. Damaged cable will make unstable driveability.
When disassembling fuel system parts, pay attention to O-ring position, replace with new
one as re-assembly
There is a drain screw in the float chamber for draining residual gasoline.
Do not disassemble automatic by-starter and air cut-off valve arbitrarily.
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