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MAINTENANCE
SPARK PLUG MAINTENANCE
Tools required – Spark plug socket wrench, spark
plug gap tool or feeler gauge, and wire brush.
The spark plug should be checked and cleaned
after every 100 hours of use or 6 months and then
replaced after 250 hours of use or every year.
1. Stop the generator and let it cool for several
minutes if it's been running.
2. Move the generator to a flat, level surface.
3. Unlock and remove the engine access cover
(see Figures 11 and 12).
4. Remove the spark plug boot by firmly pulling it
up and away from the engine (see Figure 22).
Figure 22 – Removing the Spark Plug Boot
NOTICE
Never apply any side load or move the spark plug
laterally when removing the spark plug. Applying
a side load or moving the spark plug laterally may
crack and damage the spark plug insulator.
5. Clean area around the spark plug.
6. Use a spark plug socket wrench to remove the
spark plug from the cylinder head by unscrewing
it anti-clockwise (see Figure 23).
Figure 23 – Removing the Spark Plug
21
7. Place a clean rag over the opening created by
the removal of the spark plug to make sure no
dirt can get into the combustion chamber.
8. Inspect the spark plug for:
• Cracked or chipped insulator; replace the
spark plug.
• Excessive wear of the electrodes; replace the
spark plug.
• Excessive carbon or oil fouling of the
electrodes; clean the electrodes with a wire
brush or replace the spark plug.
• Spark plug gap of 0.7 mm or 0.028 inch
(see Figure 24); after cleaning with a wire
brush, check using a spark plug gap tool or
feeler gauge and adjust by carefully bending
the ground electrode. Always check the gap
of a new spark plug before installing it.
When replacing the spark plug, use only
the specified part as listed in Table 3.
A
G
F
E
A - Gap
B - Ground Electrode
C - Gasket
D - Insulator
Figure 24 – Spark Plug
Table 3: Replacement Spark Plug for iGen2600
Spark Plug Make and Model
Torch
Bosch
E6RTC
WR7BC+
NOTICE
Use only the recommended spark plug
(Torch brand) or equivalent. The use of a non-
recommended spark plug can damage the engine.
B
C
D
E - Terminal
F - Thread
G - Centre Electrode
Denso
NGK
W20FPR-U
BPR6HS
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