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Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [317/555] 12053
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Section 05 ELECTRICAL SYSTEM
Subsection 03 (IGNITION SYSTEM)
smr2009-032-004_a
1. Seal properly seated
SPARK PLUGS
Spark Plug Removal
Open seat.
Remove rear ventilation box. Refer to
AIR INTAKE
SYSTEM
.
Disconnect the ignition coil input connector.
Remove ignition coil. Refer to
IGNITION COIL RE-
MOVAL
in this subsection.
WARNING
Never remove an ignition coil from a spark
plug without disconnecting it from the wiring
harness. Flammable vapors may be present
in the bilge. Should the safety lanyard be in-
stalled on the D.E.S.S. post, a spark could be
generated at the coil spark plug end which
could cause an explosion.
Using a spark plug socket, release the torque ap-
plied to the spark plug.
A00E0BA
2
1
1. Approved socket
2. Improper socket
Clean the spark plug and cylinder head with pres-
surized air.
Unscrew spark plug then use the ignition coil to
take spark plug out of spark plug hole.
smr2009-032-003_a
1. Ignition
coil
2. Spark plug
Troubleshooting a Fouled Spark Plug
Fouling of the spark plug is indicated by irregular
running or misfiring of the engine, decreased
engine speed due to misfiring, reduced perfor-
mance, and increased fuel consumption.
Other pos
sible causes are: a incorrect or bad
fuel, def
ective ignition system, incorrect spark
plug gap
, loss of compression, or lubricating oil
enterin
g the combustion chamber.
The plug face of a fouled spark plug has either a
wet or dry black carbon deposit. Such coatings
form a conductive connection between the center
electrode and the ground electrode.
Spark Pl
ug Analysis
A00E0AA
123
TYPICAL
1. Overheated (light grey, white)
2. Norma
l (light brown, brown)
3. Fouled (black, wet or dry, dark deposits, grey, melted coating)
The plug face reveals the condition of the engine,
operating condition, method of driving and fuel
mixture. For this reason it is advisable to inspect
294 smr2009-032
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