Sym JOYMAX 250 - Precautions in Operation

4. Fuel System
4-2
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 off throttle cable. Damaged throttle cable will make unstable drive-ability.
 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 air cut valve arbitrarily.
Specification
ITEM
LM25W
Carburetor diameter
Ø28.8 mm
I.D. number
CVK122B
Fuel level
18.5 mm
Main injector
# 122
Idle injector
# 38
Idle speed
1500±100 rpm
Throttle handle clearance
2~6 mm
Pilot screw
2±1/2 turns
Tool
Special service tools
Vacuum/air pressure pump
Fuel level gauge
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