Rato RTAXQ1-190 Owner's Manual page 26

MAINTENANCE
4. Spark Plug
Recommended spark plugs: F7RTC.
1) Remove the spark plug cap.
2) Use the plug wrench to remove the spark plug.
SPARK PLUG CAP
3) Inspect the spark plug visually if the insulator is broken, if broken,
replace with new the spark plug.
4) Measure the plug gap with a feeler gauge.
Modify as necessary by carefully bending
the side electrode carefully. The gap should
be: 0.70-0.80 mm
5) Check the spark plug washer is in good
condition.
6) Install the spark plug on and screw down it with plug wrench, press
the plug washer. Cover the spark plug cap on.
Please use the spark plug with suitable heat range.
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PLUG WRENCH