6.5 SPARK PLUG SERVICE
WARNING!
Do not rinse spark plug in water. Follow guidelines and be careful
not to overtighten the spark plug.
Recommended spark plug:
BG4650E, BG6250E, BG11500E and BG11500DE: F7TC / BP7ES
BG13000TE: F7RTC
Check the spark plug gap and clean the carbon deposits at the bottom of the spark
plug.
Tighten 1/2 turn when installing a new spark plug.
Tighten 1/8 TO 1/4 turn when re-installing an old spark plug.
1.
Remove the spark plug cap.
2.
Remove the spark plug with the spark plug wrench.
3.
Visually inspect the spark plug. Replace with a new plug if the insulation is
cracked or chipped. Clean with a wire brush if the spark plug is reused.
4.
Measure the spark plug gap with a feeler gauge. The normal value is:
0.7-0.8mm (0.028- 0.031in). Adjust the gap by carefully bending the
electrode.
5.
Carefully reinstall the spark plug by hand, to avoid cross-threading. A new
spark plug should be tightened 1/2 turn with a wrench. A used spark plug
should be tightened 1/8 to 1/4 turn with a wrench.
6.
Reinstall the spark plug cap.
NOTE
The spark plug must be securely tightened or it could cause the spark
plug to heat up, enough to damage the engine.
Never use a spark plug with an improper heat range.
8.6.2)Take off the spark arrester from the muffle
after the engine cool down.
e off the spark arrester from the muffle
(0.028-0.031in)
49
0.70-0.80mm
8.7) Cleaning•• F u
8.7.1•••• Remove•• t he•• f ue
BG SERIES
8.7.2•••• Clean•• t he•• f ilter