Joyner Go-kart JNSZ650DS Owner's Manual page 24

Top up the reserve coolant
If the coolant in the reserve tank is less than 2/5, it needs to be topped up.
1. Turn the reserve coolant case cap counterclockwise and open the cap.
2. Pour fresh coolant of the specified type into the reserve coolant tank till the coolant
reaches 2/5 to 3/5 of the reserve coolant tank volume.
3. Close the reserve coolant case cap, turn it clockwise and tighten it
Opening the radiator cap while the engine is hot can be hazardous.
Opening the radiator cap can spray the high temperature coolant in your eyes,
face and any parts of your body. This can result in severe injury.
Never open the radiator cap while the engine is hot.
SERVICE INSTRUCTIONS
New and used coolant can be hazardous.
Children and pets may be harmed by new or used coolant.
Continuous or brief contact with coolant may be dangerous for your health.
Keep new and used coolant away from the children and pets. To minimize your
exposure to new and used coolant, wear a long sleeve shirt and moisture-proof
gloves(such as dishwashing gloves) when you change coolant. If coolant contacts
your skin, wash thoroughly with soap and water. Wash any clothing or rags if wet
with coolant. Recycle or properly dispose of used coolant.
Failure to use the correct coolant or coolant not the same as one in the radiator
or reserve case can harm your ATV. Engine damage may occur if you use coolant
that does not meet the specifications.
E. Spark Plug
a. Remove the spark plug and inspect it
each time you change the oil.
(Use a spark plug wrench) The electrodes
should be kept clean and free of carbon.
The presence of carbon or excess oil will
greatly reduce proper engine performance.
If possible, check the spark plug gap
(area between electrodes) using a wire feeler
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