PERIODIC MAINTENANCE 2-7
SPARK PLUG GAP
Measure the spark plug gap using a thickness gauge. If the
spark plug gap is out of specification, adjust the gap.
Standard
Spark plug gap: 0.6 – 0.7 mm (0.024 – 0.028 in)
09900-20803: Thickness gauge
ELECTRODE
Check the condition of the electrode.
If the electrode is extremely worn or burnt, replace the spark
plug with a new one.
Also, replace the spark plug if it has a broken insulator, dam-
aged threads, etc.
SPARK PLUG INSTALLATION
• Insert the spark plug and finger tighten it to the cylinder head
and then tighten it to the specified torque.
Spark plug: 18 N·m (1.8 kgf-m, 13.0 lb-ft)
FUEL HOSE
• Remove the seat. (7-4)
• Remove the fuel tank left side cover. (7-5)
• Inspect the fuel hose for damage and fuel leakage. If any
damages are found, replace the fuel hoses with a new one.
0.6 – 0.7 mm
(0.024 – 0.028 in)
Check the thread size and reach when replacing the
spark plug. If the reach is too short, carbon will be
deposited on the screw portion of the spark plug hole
and engine damage may result.
To avoid damaging the cylinder head threads; first,
finger tighten the spark plug, and then tighten it to the
specified torque using the spark plug wrench.
Inspect every 3 months.
Replace every 4 years.
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