Spark Plug Service - Honeywell HW5500E - Portable Generator NOT Owner's Manual

Spark Plug Service

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 5. 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)
Stop engine if it is running. Allow to completely cool.
1.
2. Place the generator on a flat, level surface.
Remove spark plug cap.
3.
FIGURE 50: Spark Plug Cap Removal
Clean any dirt from around spark plug base.
4.
* See Maintenance Parts at end of this manual.
28 www.honeywellgenerators.com
5. Using a 13/16" spark plug socket wrench, loosen and
remove spark plug.
*
6. Inspect spark plug.
„ If spark plug is damaged or excessively worn, or if
insulator is cracked or chipped, use a new spark
plug.
If spark plug is in good condition, reuse existing
„
spark plug.
7. If reusing spark plug, clean spark plug with wire
brush.
Measure spark plug gap with spark plug gauge.
8.
Gap should be: (0.028-0.031 in) (0.70-0.80 mm).
9. If necessary, adjust gap by carefully bending side
electrode.
10. Inspect spark plug washer and verify it is in good con-
dition.
11. Reinstall spark plug by hand to prevent cross-thread-
ing.
After spark plug is seated, tighten with spark plug
12.
wrench to compress washer.
„ If installing a new spark plug, tighten 1/2 turn after
the spark plug seats to compress the washer.
„ If reinstalling a used spark plug, tighten 1/8 - 1/4
turn after the spark plug seats to compress the
washer.
Spark plug must be securely tightened. An improperly tight-
ened spark plug can become very hot and could damage
engine. Never use spark plugs that have an improper heat
range. Use only recommended spark plugs or equivalent.
HW5500/HW5500E/HW5500EL/HW5500L Portable Electrical Generator Owner's Manual
FIGURE 51: Spark Plug Removal
0.028-0.031 in
(0.70-0.80 mm)
FIGURE 52: Correct Spark Plug Gap
NOTICE