Suzuki LT-R450K6 - Page 22

2-1 0 PERIODIC MAINTENANCE
SPARK PLUG
Inspect every 6 months.
Replace every 18 months.
Remove the fuel tank and fuel tank lower cover. (W5-4)
Disconnect the spark plug cap (11 and remove the spark plug.
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CARBON DEPOSITS
Check to see if there are carbon deposits on the spark plug. If
carbon is deposited, remove it using a spark plug cleaner
machine or carefully use a tool with a pointed end.
Hot type
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: 0.7
- 0.8 mm (0.028 - 0.031 in)
L
Standard
09900-20803: Thickness gauge
Cold type
CR7EB
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.
EA:UTI ON
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.
CREE0
SPARK PLUG INSTALLATION
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CR9EB
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.
Insert the spark plug and finger tighten it to the cylinder head
and then, tighten it to the specified torque.
Spark plug:
11 N.m (1.1 kgf-m, 8.0 lb-ft)
(0.028 - 0.031 in)