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ENGINE
CHECKING SPARK PLUG
NOTE: Always clean the cylinder and spark plug area prior to removing the plug and take care to prevent debris from entering cylinder
when spark plug is removed.
Carefully remove the spark plug. Observe the color of the ceramic tip on the spark plug when removing accumulated carbon. If the standard plug
appears wet or black in color, it can be replaced with a high-voltage thermal spark plug. Proper spark plug color is a pale grey to yellow. If
the spark plug is very white or shiny, the engine is running hot and should be replace with a cooler plug. The standard spark plug supplied with
this motorcycle has been selected to accommodate common conditions. If the spark plug color differs different from what is specified it may be
necessary to select an alternate plug according to the table. This engine is designed to be used with NGK brand spark plugs.
VALVE CLEARANCES
SPARK PLUG
Valve clearance should be checked to make sure it is within correct specifications. Valve clearance should be between 0.04 - 0.06mm at the
intake and 0.05-0.06mm at the exhaust. Valve checking and adjustment takes some mechanical knowledge and ability. If you are not confident in
your ability, valve adjustment should be completed by a qualified technician.
Note: Janus Motorcycles cannot assume any responsibility for damage resulting from incorrect adjustment performed by the owner.
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