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Ignition System; Checking The Ignition Spark Gap - Yamaha 25BMH Manuel D'entretien

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ELEC

IGNITION SYSTEM

CHECKING THE SPARK PLUGS
Refer
to
PLUGS" on page 3-22.
Standard spark plug
25B:
NGK BR7HS-10
30H:
NGK BR8HS-10

CHECKING THE IGNITION SPARK GAP

WARNING
• Do not touch any of the connections of
the spark gap tester lead wires.
• Do not let sparks leak out of the
removed spark plug cap.
• Keep flammable gas or liquids away,
since this test can produce sparks.
Check:
Ignition spark gap
Below specification → Check the
ignition system.
Minimum ignition spark gap
8.0 mm (0.31 in)
Checking steps
(1) Remove the spark plugs from the
engine.
(2) Connect a spark plug cap to the ignition
tester.
Ignition tester
90890-06754
(3) Adjust the ignition spark gap to 11 mm
(0.43 in) by turning the adjust knob.
NOTE:
Be careful so that the spark gap does not
come excessively off the measuring posi-
tion [11 mm (0.43 in)].
8-5
"CHECKING
THE
E
SPARK

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Ce manuel est également adapté pour:

30hmh