Use and Care Manual

Maintenance
26 EcoGen Automatic Standby Generator Owner’s Manual
Figure 4-10. Replace Engine Air Filter
4.7.2— Clean/Gap/Replace Spark Plugs
Clean, gap or replace spark plugs as follows:
Never disconnect a spark plug with the engine running. Doing so will result in an electric shock that
could result in death or serious injury.
The AVR remains charged for up to three minutes after power down. To avoid potential electric shock,
allow five minutes to elapse before removing AVR filter housing.
1. Remove screw to release AVR filter housing from back panel. Remove AVR filter housing.
2. Remove spark plug cables from spark plug terminals.
NOTE: When disconnecting spark plug cable from spark plug terminal, always grasp and pull on the boot at
the terminal end of the cable. Pulling on cable portion can result in parts damage.
3. Thoroughly clean area around spark plugs.
4. Remove spark plugs from cylinder head using a 5/8 inch spark plug socket.
Figure 4-11. Adjust Spark Plug Gap
5. Check condition of threads in cylinder head and on spark plugs. If necessary, soften deposits with penetrating oil
and clean out with a thread chaser.
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