Joyner JNSZ800MVA, Руководство пользователя

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Spark plugs replacement
The spark plugs should be replaced every 30000km/18641miles, or 18 months. Do the following step
by step.
Unscrew 8 screws and take off spark plug plastic cover.
Clean the dust in the spark plug seat.
Pull off the high-voltage wire
，
remove the spark plug with a special spanner.
Insert a new spark plug or a cleaned spark plug, and turn a few rounds clockwise, if retardarce
happen, take it off and try it again to make sure screw engaged correctly.
Tighten spark plug with a special spanner (torque: 25Nxm/18.4Ft-Lb).
Connect high-voltage wire in order.
Engine damage or working unsteadily may occur if:
Not install the spark plug correctly.
Use a forbidden spark plug.
To avoid damage, follow the following items:
Tighten spark plug to a required torque (25Nxm), over tightening will damage the screw.
Removing or installing a spark plug, make sure the slot aligned.
Do not pull the high-voltage wire, pulling the tube wrapping the high-voltage wire is allowed.
Other brands of spark plug are forbidden.
Make sure spark plugs hole lip is clear.
The spark plugs is hot after a long-time driving, make sure the spark plugs is not hot before operation.