Honda CH250 Elite 1986 Service Manual page 183

ELECTRICAL EOUIPMENT
TROUBLESHOOTING
CHARGING SYSTEM
No current
• Dead battery
- Low fluid level
Battery sulfation
- Internally shorted battery
- Charging system failure
• Disconnected battery cable
• Burned out fuse
• Faulty ignition switch
low current
• Weak
• Loose battery connection
• Charging system failure
• Faulty regulator/rectifier
IGNITION SYSTEM
No spark at plug
Poorly connected, broken or shorted wire
- Between pulse generator and COl unit
Between COl unit and coil
Between COl unit and switch
- Between ignition coil and spark plug
Faulty:
- Ignition switch
- Ignition coil
- COl unit
- Pulse generator
- Spark plug
STARTING SYSTEM
Starter won't turn
Burned out fuse
Weak battery
Poorly connected, broken or shorted wire
Faulty:
- Ignition switch
- Starter switch
- Rear brake light switch
"- Starter relay
- Starter motor
DIGITAL SPEEDOMETER
Meter does not indicate properly
Dead
Burned out fuse
Broken
or
disconnected speedometer cable
Poorly connected, open or shorted wire
Faulty:
- Meter unit
- Speedometer gear
- Ignition switch
- Speed sensor (reed switch)
16-2
Intermittent current
• Loose
Battery cable
Charging system connection
- Connection or short circuit in lighting system
- Ignition system connection
Charging system failure
• Loose, broken or shorted wire or connection
• Faulty regulator/rectifier
• Faulty alternator
Engine starts but runs poorly
• Ignition primary circuit
- Faulty ignition coil
- Loose or bare wire
Poor connection at ignition switch
• Ignition secondary circuit
- Faulty ignition coil
- Faulty spark plug
- Faulty spark plug wire
Poorly insulated plug cap
• Improper ignition timing
.- Faulty pulse generator
- Stator not installed properly
- Faulty COl unit
lack of power
• Weak battery
• Loose or bare wire
• Faulty starter or starter gear
Starter rotates, but engine does not start
• Faulty starter pinion
• Low battery