Checking The Spark Plug Hood; Checking The Ignition Coil - Yamaha FZ-16 Service Manual

CHECKING THE SPARK PLUG HOOD

1.Check:
• plug cap resistance
Replace out of specification.
Plug cap resistance
Ku 5.0 at 20 ° C (68 ° F)
a. Remove the cap from the spark plug wire
plug.
b. Connect the multimeter (Ù × 1k) to cap
the spark plug as shown.
Multimeter
c. Measure the resistance of the spark plug cap.

CHECKING THE IGNITION COIL

1.Check:
• Primary coil resistance
Replace out of specification.
Primary coil resistance
Ù 0.32 to 0.48 at 20 ° C (68 ° F)
ELECTRICAL COMPONENTS
a. Disconnect the coil connectors
ignition of the coil terminals
lit.
b. Connect the multimeter (Ù × 1) to the coil
on, as shown.
Multimeter
• Tester positive probe
orange "1"
• Tester negative probe
land "2"
c. Measuring the resistance of the secondary coil.
2.Check:
• Resistance of the secondary coil
Replace out of specification.
Secondary coil resistance
Ku 5.68-8.52 at 20 ° C (68 ° F)
a. Disconnect the spark plug cap from the
ignition coil.
b. Connect the multimeter (Ù × 1k) to the coil
on, as shown.
Multimeter
7-39