Ignition System: 1H-1
Engine
Ignition System
Schematic and Routing Diagram
Ignition System Diagram
B817H21802001
Refer to “Wire Color Symbols in Section 0A (Page 0A-5)”.
Ignition System Components Location
B817H21802002
Refer to “Electrical Components Location in Section 0A (Page 0A-10)”.
Diagnostic Information and Procedures
Ignition System Symptom Diagnosis
B817H21804001
#1
#2
#3
#4
CKP
sensor
TP
sensor
ECT
sensor
GP
switch
Engine stop switch
Side-stand
relay
Fuse
Fuse
Ignition
switch
Battery
ECM
I718H1180001-02
Condition Possible cause Correction / Reference Item
Spark plug not sparking Damaged spark plug. Replace.
Fouled spark plugs. Clean or replace.
Wet spark plugs. Clean and dry or replace.
Defective ignition coil/plug caps. Replace.
Defective CKP sensor. Replace.
Defective ECM. Replace.
Open-circuited wiring connections. Repair or replace.
Engine stalls easily. (No
spark)
Fouled spark plugs. Clean or replace.
Defective CKP sensor. Replace.
Defective ECM. Replace.
Spark plug is wet or
quickly becomes fouled
with carbon.
Excessively rich air/fuel mixture. Inspect FI system.
Excessively high idling speed. Inspect FI system.
Incorrect gasoline. Change.
Dirty air cleaner element. Clean or replace.
Incorrect spark plug (Cold type). Change to hot type spark plug.
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