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Warning:
1. W hen conducting maintenance, please read the operation guidance and
warning signs and prepare the necessary tools and auxiliary materials.
2. T he clean, flat, ventilating and bright place should be chosen to conduct the
maintenance. The engine should be stopped unless necessary. Please choose
the real products if it is necessary to change the components.
3. P lease ask help from dealers of franchiser if you can not conduct the
maintenance by yourself.
4. I t will be better for you to ask the dealers of the producer to repair or
maintenance the items with "*", unless you have enough tools, maintenance
parameters and experiences.
7.2 Spark Plug
Take off the cap of Spark Plug.
Dust the tray of Sparkling Plug.
Take out Spark Plug by wrench.
Inspect the electrode and replace it if the electrode and the nonconductor are
burnt in a improper way.
A new one should be installed if Spark Plug is apparently burnt or the
nonconductor is broken.
Inspect the distance between the electrodes. The normal distance is 0.8-0.9
mm. You must make it to the right place carefully if the distance is not proper.
Please drive the screw by hand if installing Sparkling Plug to avoid sliding-
filament.
After the above-mentioned step, you can drive fasten it 1/2 circle (for new
Spark Plug) or 1/4 - 1/8 circle (for used Spark Plug) by the special wrench for
Spark Plug.
Attention: You should tighten Sparkling Plug and otherwise it will cause the
damage of engine as a result of overheating
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