Yamaha F6AMH Wartungshandbuch Seite 450

IGNITION SYSTEM
CHECKING THE SPARK PLUGS
Check:
Spark plugs


Refer to "CHECKING THE SPARK
PLUGS" on page 3-23.
CHECKING THE IGNITION SPARK GAP
WARNING
Do not touch any of the connections of


the spark gap tester lead wire.
Do not let sparks leak out of the removed


spark plug cap.
Keep flammable gas or liquids away,


since this test can produce spark
Check:
Ignition spark gap


Above specification
spark plug.
Ignition spark gap:
0.9 mm (0.04 in)
Checking steps:
(1)Remove the spark plugs from the
engine.
(2)Connect a spark plug cap to the spark
gap tester.
(3)Set the spark gap length on the
adjusting knob.
Spark gap tester:
YM-34487/90890-06754
(4)Crank the engine and observe the
spark through the discharge window of
the spark gap tester.
CHECKING THE SPARK PLUG CAPS
AND IGNITION COIL
1. Check:
Spark plug cap 1


High tension code 2


Ignition coil 3


Loosen connection
Cracks/damage
Replacing steps:
(1)To remove the spark plug cap or high
tension code, turn it counterclockwise.
8-10
Replace the

Tighten.

Replace.