45
the filter.
Spark plug
Remove the spark plug.
Check whether the spark plug is damaged or stained or has
carbon fouling.
If yes, please clean it with spark plug cleaner or steel brush.
Check spark plug gap.
Gap: 0.6-0.8mm
（火花塞间隙：
spark plug gap
）
* Note
For the installation of spark plug, it shall be installed with hand first and then fastened with spark plug sleeve.
Battery
Battery disassembly
Remove the fixing screws of the battery box cover.
Remove the battery box cover.
Remove the negative wire and then the positive wire.
Remove the battery.
Warning!
When the positive wire is disassembled, do not make the tool
contact with the frame. Otherwise, it may cause short-circuit
spark, which may ignite gasoline and damage the battery. It is
dangerous.
Install it in reverse order.
