Cleaning Fuel Sediment Cup; Spark Plug Service - Honeywell HW4000L - Portable Generator Owner's Manual

Cleaning Fuel Sediment Cup

The sediment cup helps prevent fuel tank residue from
entering the carburetor.
Clean fuel sediment cup at the intervals specified in
Table 2.
To clean fuel sediment cup, you will need:
‰ 10 mm box wrench
‰ 14 mm open end wrench
‰ Household soap and water
‰ Clean, dry cloth
To clean fuel sediment cup:
Stop engine if it is running. Allow to completely cool.
1.
Place the generator on a flat, level surface.
2.
Turn fuel shut-off valve to OFF position.
3.
4. While holding the fitting above the fuel shut-off valve
with a 14 mm open end wrench, remove the fuel sedi-
ment cup assembly (sediment cup, o-ring, and fuel
screen) using a 10 mm box wrench.
FIGURE 40: Fuel Sediment Cup Assembly Removal
Clean fuel screen (A), o-ring (B), and sediment cup
5.
(C) with soap and water.
FIGURE 41: Fuel Sediment Cup Assembly
Rinse parts thoroughly with water.
6.
Wipe pieces clean with clean, dry cloth.
7.
Reinstall sediment cup, o-ring, and fuel filter.
8.
9. Turn fuel shut-off valve to ON position.
Start generator and check for leaks.
10.
HW4000/HW4000L Portable Electrical Generator Owner's Manual
Cleaning Fuel Sediment Cup

Spark Plug Service

To ensure proper engine operation, spark plug must be
properly gapped and free of deposits.
If engine has been running, spark plug will reach
temperatures that could cause severe burns. Do
not touch.
Recommended Spark Plug Replacement: 100842A
Bosch WR7DC
Champion RN9YC
Denso W20EPR
NGK BPR6ES
TABLE 4. Spark Plug Equivalents to 100842A
To service spark plug, you will need:
‰ Clean cloth
‰ 13/16" spark plug socket wrench
‰ New spark plug (if existing spark plug is exces-
sively worn or damaged)
‰ Wire brush
‰ Spark plug gauge (for setting spark plug gap)
1. Stop engine if it is running. Allow to completely cool.
Place the generator on a flat, level surface.
2.
3. Remove spark plug cap.
FIGURE 42: Spark Plug Cap Removal
Clean any dirt from around spark plug base.
4.
* See Maintenance Parts at end of this manual.
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