Precautions In Operation; Fuel System - Sym GTS 250 Service Manual

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 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
Carburetor diameter
I.D. number
Fuel level
Main injector
Idle injector
Idle speed
Throttle handle clearance
Pilot screw
Tool
Special service tools
Vacuum/air pressure pump
Fuel level gauge
4-2
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LM25W
Ø28.8 mm
CVK122B
18.5 mm
# 122
# 38
1500±100 rpm
2~6 mm
2±1/2 turns