1
. GENERAL INFORMATION Movie S 125i
1-21
TROUBLESHOOTING
ENGINE WILL NOT START OR IS HARD TO START
Possible cause
1. Check for operation of the fuel pump
Abnormal
Faulty fuel pump
Normal
2. Inspect the fuel flow
Abnormal
Faulty pressure regulator
Normal
3. Inspect the fuel injector
Abnormal
Faulty injector
Normal
4. Perform spark test
Weak or no spark
Faulty spark plug
Fouled spark plug
Faulty ECU
Good spark
Broken or shorted spark plug wire
Faulty ignition switch
Faulty ignition pulse generator
Loose or disconnected spark plug
wire
5. Test cylinder compression
Low compression
Valve stuck open
Worn cylinder and piston ring
Damaged cylinder head gasket
Compression normal
Seized valve
Improper valve timing
6. Starting following normal procedure
Engine start
Intake pipe leaking
but stop
Improper ignition timing (Faulty
ignition coil or ignition pulse
generator)
Engine does not start
Fuel contaminated
7. Remove and inspect spark plug
Wet plug
Throttle valve open
Clogged air cleaner
Summary of Contents for KYMCO Movie S 125i
Page 17: ...1 GENERAL INFORMATION Movie S 125i 1 14...
Page 23: ...1 GENERAL INFORMATION Movie S 125i 1 20 WIRING DIAGRAM...
Page 54: ...5 Fi INJECTION SYSTEM MOVIES125i 5 2 Fi PARTS DRAWING...
Page 85: ...6 0 6 6 ENGINE REMOVAL INSTALLATION Movie S 125i...
Page 90: ...7 0 7 7 CYLINDER HEAD VALVES Movie S 125i...
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Page 109: ...10 10 FINAL REDUCTION 10 0 Movie S 125i...
Page 116: ...11 11 CRANKCASE CRANKSHAFT 11 0 Movie S 125i...
Page 123: ...12 FRONT WHEEL BRAKE SUSPENSION 12 1 Movie S 125i...
Page 129: ...12 FRONT WHEEL BRAKE SUSPENSION 12 7 Movie S 125i...
Page 139: ...13 13 0 13 REAR WHEEL REAR BRAKE REAR SUSPENSION Movie S 125i...
Page 157: ...15 IGNITION SYSTEM 15 2 Movie S 125i IGNITION CIRCUIT...
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