Yamaha XV1600A1999 Service Manual page 404

EB802405
4. Ignition spark gap
The following procedure applies to all of the
spark plugs.
S Disconnect the spark plug cap from the
spark plug.
S Connect the Ignition checker
shown.
Spark plug cap
2
S Set the main switch to "ON".
S Measure the ignition spark gap
S Crank the engine by pushing the start switch
and gradually increase the spark gap until a
misfire occurs.
Minimum ignition spark gap
6 mm
S Is there a spark and is the spark gap within
specification?
NO
EB802407
5. Spark plug cap resistance
The following procedure applies to all of the
spark plug caps.
S Disconnect the spark plug cap from the
spark plug.
S Connect the pocket tester (Ω
spark plug cap as shown.
S Measure the spark plug cap resistance.
as
1
.
a
YES
The ignition system
OK?
1k) to the
IGNITION SYSTEM
Spark plug cap resistance
10 kΩ at 20_C
S Is the spark plug cap OK?
YES
EB802409
6. Ignition coil resistance
The following procedure applies to all of the
ignition coils.
S Disconnect the ignition coil connectors from
the ignition coil terminals.
S Connect the pocket tester (Ω
tion coil as shown.
Tester positive probe ! red/black
Tester negative probe ! orange (gray)
S Measure the primary coil resistance.
Primary coil resistance
1.53
S Connect the pocket tester (Ω
tion coil as shown.
S Measure the secondary coil resistance.
Tester positive probe !
Tester negative probe !
7-14
ELEC
NO
Replace the spark
plug cap.
1) to the igni-
2.07 Ω at 20_C
1) to the igni-
spark plug lead
spark plug lead
E
1
2