Spark Gap - YAMAHA Marine F4A Manual De Servicio

ELEC
IGNITION SYSTEM
0 5
10
SERVICE POINTS
IGNITION SPARK GAP
w
9When checking the spark gap, do not
touch any of the connections of the spark
gap tester lead wires.
9When performing the spark gap test, take
special care not to let sparks leak out of
the removed spark plug cap.
9When performing the spark gap check,
keep flammable gas or liquids away,
since this test can produce sparks.
1. Check:
9 Ignition spark gap
Less than specification
check the ignitor ass'y output.

SPARK GAP:

9 mm (0.4 in)
Checking steps:
8 Remove the spark plugs from the
engine.
8 Connect the spark plug cap to the
spark gap tester.
8 Set the spark gap length on the
adjusting knob.
Spark gap tester:
YM-34487/90890-06754
8 Crank the engine and observe the
ignition system spark through the
discharge window.
8-6
E
® Continue to