Christini AWD 250, Service Manual

Page: 18 / 124

Page 17
The standard spark plug is a shown in the table and should be tightened to 27 Nm.
The spark plug should be removed periodically to check its gap. If the plug is oily or has carbon deposits,
clean it with a sandblaster. After removing the abrasive particles, the spark plug must be cleaned using a
wire brush or a similar tool. Measure the gap with a feeler gauge, if incorrect adjust the gap by bending the
side electrode. If the spark plug electrodes are corroded or damaged, or if insulator is cracked, replace the
plug.
NOTE NOTE NOTE NOTE
Inspect every 30 hours and change every 60 hours. Inspect every 30 hours and change every 60 hours. Inspect every 30 hours and change every 60 hours. Inspect every 30 hours and change every 60 hours.
To find out whether the right heat range plug is being used, remove it and inspect the ceramic insulator
around the center electrode. If the ceramic is light brown, the spark plug is correctly matched to engine
temperature. If the ceramic is white, the spark plug should be replaced with the next colder plug. If the ce-
ramic is black, the spark plug should be replaced with the next hotter plug.
NOTE
NOTE NOTE
NOTE
If the engine performance drops, replace the spark plug first to recover its output.
Spark Plug