Honda CM400A - Page 189

HONDA
IGNITION SYSTEM CB400T
TROUBLESHOOBl MG
Engine Cranks but Will Not Start:
- Engine stop switch OFF
- No spark at plugs
- Defective C.D.I. unit
- AC generator faulty
No Spark at Plugs
- Engine stop switch OFF
- Poorly connected, broken or shorted wires
,
Between AC generator and ignition coil
.
Between C.D.I. unit and engine stop switch
.
Between C.D.I. unit and ignition coil
.
Between C.D.I. unit and ignition switch
. Between ignition coil and plug
- Defective ignition switch
- Defective ignition coil
- C.D.I. unit faulty
- Defective AC generator
Engine Starts but Runs Poorly
- Ignition primary circuit
. Defective ignition coil
. Loose or bare wire
.
Intermittent short-circuit in a switch
- Secondary circuit
. Defective plug
. Defective high tension cord
- Secondary circuit
. Defective AC generator
. Defective C.D.I. unit
16-2
Date of Issue: February, 1979
O HONDA MOTOR CO., LID.