Ignition unit and component
5-29
d. Connect the ignition coil couplers.
2. Measure:
• Ignition coil
resistance
Out of specification Replace.
a. Disconnect the ignition coil couplers.
b. Disconnect the spark plug caps from
the spark plugs.
c. Remove the spark plug caps from the
ignition coil.
d. Measure the ignition coil resistance.
e. Install the spark plug caps to the igni-
tion coil.
f. Connect the spark plug caps and igni-
tion coil couplers.
Checking the spark plug cap
1. Measure:
• Spark plug cap resistance
Out of specification Replace.
a. Remove the spark plug cap from the
spark plug wire
by turning the spark
plug cap counterclockwise.
b. Measure the spark plug cap resis-
tance.
c. Install the spark plug cap to the spark
plug wire
by turning the spark plug cap
clockwise.
Checking the pulser coil
1. Measure:
• Pulser coil output peak voltag
e
Out of specification Measure the pulser
coil res
istance.
Primary coil resistance
1.870–2.530
Secondary coil resistance
10.80–14.61 k
A. Primary coil
B. Secondary coil
Spark plug cap resistance (refer-
ence data)
5.0 k
Pulser coil output peak voltage
(reference data)
White/Red (W/R)–Black (B)
r/min
Unloaded
Loaded
Cranking 1500 3500
DC V 9.6 9.0 26.8 31.6
To Next Page
