HYOSUNG WOW 50, Service Manual

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TYPE SPARK PLUG SPECIFICATION
2-5 PERIODIC MAINTENANCE
●
Check spark plug for burnt condition. If abnormal,
replace the plug as indicated below.
BPR5HS
BPR6HS
BPR7HS
Hot type
Standard type
Cold type
Thickness gauge : 09900-20804
Spark plug : 25~30 N
∙
m (2.5~3.0 kg
∙
m)
SPARK PLUG
NOTE :
Inspect Initial 1 month and Every 3 months,
Replace Every 6 months.
Neglecting the spark plug maintenance eventually
leads to difficult starting and poor performance. If the
spark plug is used for a long period, the electrode grad-
ually burns away and carbon builds up along the inside
part. In accordance with the Periodic Inspection Chart,
the plug should be removed for inspection, cleaning
and to reset the gap.
●
Carbon deposits on the spark plug will prevent good
sparking and cause misfiring. Clean the deposits off
periodically.
●
If the center electrode is fairly worn down, the plug
should be replaced and the plug gap set to the speci-
fied gap using a thickness gauge.
0.6 � 0.7 mm
(0.024~0.028 in)
Spark plug gap
● ●
To check the spark plug, first make sure that the
fuel used is unleaded gasoline, and if plug is
either sooty with carbon or burnt white, replace
it.
● ●
Confirm the thread size and reach when replac-
ing the plug.
CAUTION
0.6
�
0.7 mm
(0.024~0.028 in)