kymco mo mxer50 Manuales De Servicio

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5
. FUEL SYSTEM
5-2
MX’er 50
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.
• All cables, fuel lines and wires must be routed and secured at correct locations.
• Bleed air from the oil lines whenever they are disconnected.
SPECIFICATIONS
MX’er 50
Venturi dia.
14mm
Identification number
PB
Float level
16.3mm
Main jet
#78
Slow jet
#40
Air screw opening
2 ± 
_
Idle speed
2000±100rpm
Throttle grip free play
1_ 4mm
SPECIAL TOOL
Float level gauge
TROUBLESHOOTING
Engine does not start
Lean mixture
• No fuel in tank
• Clogged fuel jets
• Faulty float valve
• Too much fuel getting to cylinder
• Clogged fuel cap vent
• Float level too low
• Clogged fuel filter
• Clogged fuel filter
• Clogged air cleaner
• Clogged air cleaner
• Bent, kinked or restricted fuel line
Engine idles roughly, stalls or runs poorly
Rich mixture
• Incorrect idle speed
• Clogged air cleaner
• Faulty float valve
• Ignition malfunction
• Intake air leaks
• Float level too high
• Compression too low
• Fuel contaminated
• Clogged air jets
• Incorrectly adjusted air screw
• Faulty reed valve
• Incorrect float level
• Clogged fuel jets