Spark Plug - KEEWAY RKV125 Instruction And Maintenance Manual

Replacing Time
If driving under dusty condition or in rainy days frequently, replace the air cleaner earlier.
* Attention
While removing filter element of air cleaner, please do not run the engine, in case unfiltered air comes into the engine,
which may result in fast wear of some components or damage the engine. On the other hand, rotation of engine
without filter element may affect the carburetor and the carburetor will not work normally afterwards, which may
result in overheated engine. Install filter element guide, filter element, air cleaner housing cover, stop valve assembly
and left protecting plate.

Spark Plug

Disconnect lead wire of spark plug cap.
Remove spark plug with a spark plug wrench or other applicable tools.
Inspection
．If the insulator is cracked or damaged;
．If electrodes are worn;
．Combustion condition and color
—Light grey color means excellent combustion condition.
—Pale color indicates that ignition system fails or lean fuel/air mixture.
—Wet appearing or dark carbon deposition means higher fuel/air mixture.
If the above-mentioned appears, please remove them with spark plug cleaner or
wire brush. If necessary, replace the spark plug.
Spark plug visual inspection
If the insulator is cracked or worn, please replace it with a new one.
Spark plug clearance inspection
Clearance: 0.6-0.7mm
* Attention
Reinstall the spark plug into the cylinder head and tighten it with the specified torque.
Tightening torque: 18N.m
Screw the spark plug into the cylinder head first with fingers, and then tighten it with spark plug wrench.