EN
Haojue TZ150S 99011H36640H000 V01 ES+EN 2015-1-17
(91)
SPARK PLUG
Spark plug inspection
0.6–0.7mm
Measure the spark plug gap with a thickness gauge. The
standard spark plug gap is 0.6–0.7 mm. If the measured
spark plug gap is out of standard range, adjust or replace
it with a new one.
Whenever removing carbon deposits, be sure to observe
the operational color of the spark plug’s porcelain tip. This
color tells you whether or not the standard spark plug is
suitable for your type usage. A normal operating spark
plug should be very light brown in color. If the spark plug is
very white or glazed in appearance, it has been operating
much too hot. This spark plug should be replaced with a
colder plug.
Spark plug replacement guide
B
CAUTION
An improper spark plug may have an incorrect fit or
heat range for your engine. This may cause severe
engine damage.
B
CAUTION
Use one spark plug listed below or equivalent.
Consult your Haojue dealer or a qualified mechanic
if you are not sure which spark plug is correct for
your type of usage.
NGK
Remarks
DR7EA
If the standard spark plug is apt to get wet,
replace with this plug.
DR8EA
Standard.
DR9EA
If the standard spark plug is apt to overheat,
replace with this plug.
NOTE: This motorcycle uses a resistor-type spark plug
to avoid jamming electronic parts.
Improper spark
plug selection may cause electronic interference with
your motorcycle’s ignition system, resulting in motorcycle
performance problems. Use only the recommended spark
plug.
Spark plug installation
B
CAUTION
A cross-threaded or over-tightened spark plug will
damage the aluminum threads of the cylinder head.
When dismantling the spark plug, keep debris from
entering the engine via the spark plug hole.
Follow the procedure below to tighten the spark plug
properly.
32
Haojue TZ150S 99011H36640H000 V01 ES+EN 2015-1-17
(91)
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