16
0.70~0.80mm
Side electrode
3-5 Spark Plug Service
Remove the spark plug cap. Clear away dirt around the
spark plug base;
Use the plug wrench to remove the spark plug;
Visually inspect the spark plug if the insulator is cracked,
if cracked, replace with new the spark plug, if deposit
around the electrode, Remove carbon or other deposits
with a stiff wire brush;
Measure the spark plug clearance with a feeler. The
clearance should be 0.7~0.8mm.
If needing adjusting, lightly tap (for gap too big) or pry
up with flat screwdriver (for gap too small) electrode.
Check that the spark plug washer is in good condition.
Install the spark plug on and screw down it with plug
wrench, compress the plug washer. Cover the spark plug
cap on.
NOTICE:
To avoid cross-threading, first, screw in spark plug by
hand, then tighten with a spark plug wrench to compress
the gasket.
If a new spark plug is used, more twist 1/2 turns after
compressing the gasket
If reinstalling the used spark plug, just more twist
1/8-1/4 turns.
Spark plug torque value：22±2N·m
The spark plug must be tightened securely, or it may
become very hot to damage the engine.
When replaced, please pay attention to model of the spark plug to avoid to damage the engine or use
recommended spark plug or the equivalent. Incorrect heat range of the spark plug may damage the
engine
·EA190 recommended spark plug model：NGK—————BPR6HS or BPR7HS
CHAMPION——RL82YC or RL87YC
TORCH————E7RTC or E6RTC
Plug wrench Spark plug cap
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