Electrical; Spark Plug; Spark Plug Gap; Standard Spark Plug - Yamaha EF2000iS Service Manual

1
2
a

SPARK PLUG

ELECTRICAL

SPARK PLUG
WARNING
Inspect and adjust the areas around the
cylinder head after the engine has cooled
down completely.
NOTICE
Before removing the spark plug, use com-
pressed air to clean the cylinder head
cover to prevent dirt from falling into the
engine.
1. Remove:
9 Rear cover 1
Refer to "COVERS AND FUEL TANK".
2. Remove:
9 Spark plug cap
9 Spark plug
3. Inspect:
9 Electrode 1
Wear/damage → Replace.
9 Insulator color 2
4. Measure:
9 Spark plug gap a
Use a wire gauge or thickness gauge.
Out of specification → Adjust.
If necessary, clean the spark plug with
a spark plug cleaner.

Spark plug gap:

0.6 – 0.7 mm (0.02 – 0.03 in)

Standard spark plug

(with resistor):
BPR6HS (NGK)
Before installing the spark plug, clean
the gasket surface and plug surface.
2-21
INSP
ADJ