BASIC MAINTENANCE PROCEDURESBASIC MAINTENANCE PROCEDURES
SPARK PLUG Cont.SPARK PLUG Cont.
Using a spark plug with an improper heat range or incorrect
reach, can cause engine damage. Using a non-resistor spark
plug may cause ignition problems.
NOTICE
!
When you inspect the spark plug, generally it will t into one of the four categories shown above. A normal/clean
spark plug will have a light brown center and displays no wear around the electrodes. A spark plug with a bright
white center indicates a lean condition in the engine. If your plug looks like this, have your motorcycle serviced by
your
EGL Motor EGL Motor dealer immediately. A carbon fouled plug will be completely black with no gloss. An oil fouled
plug will appear a dark shiny brown or shiny black as shown above. An oil fouled plug is caused when the enine
oil seeps by the piston ring and is burned with the fuel. Oil fouled plugs are not uncommon, however, if your mo-
torcycle is consistently oil fouling spark plugs, have it serviced by your local dealer immediately.
An improperly tightened spark plug can damage the engine. If
a plug is too loose, a piston may be damaged. If a plug is too
tight, the threads may be damaged.
NOTICE
!
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