SANYANG INDUSTRY CO. SYM Service Manual page 44

4. FUEL SYSTEM
PRECAUTIONS IN OPERATION
General Information
Warning
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.
Cautions
Do not 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.
Specification
Item
Speed limited:45km/h
Main jet Speed limited:25km/h
Speed limited:30km/h
Slow jet
Idle speed
Needle Jet
Mass of float
Float needle
Fuel quantity adjustment screw
Level in float chamber
Jet needle
Throttle handle free play
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
4-2
Specification
82#
85#
85#
35#
2100±100 rpm
¡ é 2.6 mm
7.2g±0.4 g
¡ é 2.0 mm
1 1/2±3/4 turns
7.0±0.5 mm
DA8CD
2~6 mm
SYM