MULTIQUIP WBH-16F Operation And Parts Manual page 31

SPARK ARRESTER CLEANING
Clean the spark arrester every 6 months or 100 hours.
1. Remove the 4 mm screw (3) from the exhaust deflector
(Figure 35), then remove the deflector.
4 MM
SCREW
PROTECTOR
4 MM
SCREW
MUFFLER
5 MM
SCREW
SPARK
ARRESTOR
Figure 35. Spark Arrester
2. Remove the 5 mm screw (4) from the muffler protector,
then remove the muffler protector.
3. Carefully remove carbon deposits from the spark
arrester screen (Figure 36) with a wire brush
SPARK ARRESTOR
SCREEN
Figure 36. Cleaning The Spark Arrester
4. If the spark arrester is damaged and has breaks or
holes, replace with a new one.
5. Reinstall the spark arrester and muffler protector in
reverse order of disassembly.
PAGE 30 — WBH-16 SERIES POWER BUGGY • OPERATION AND PARTS MANUAL — REV. #2 (09/12/19)
5 MM
SCREW
WIRE BRUSH
SPARK PLUG ADJUSTMENT
1. Make sure the engine is cool before servicing the
spark plugs.
2. Disconnect the spark plug caps. Check for dirt and
remove any dirt from around the spark plug area.
3. Remove the spark plugs with a 5/8-inch spark plug
wrench.
4. If the spark plug is damaged, the sealing washer is in
poor condition, or if the electrode is worn, replace the
spark plug.
5. Measure the spark plug electrode gap (Figure 37) with
a wire-type feeler gauge. If needed, adjust the gap to
0.7 - 0.8 mm (0.028 - 0.031 in), by carefully bending
the side electrode.
Figure 37. Spark Plug Gap
6. Install the spark plug carefully, by hand, to avoid cross
threading.
7. After the spark plug is seated, tighten with a 5/8-inch
spark plug wrench to compress the sealing washer.
8. When installing a new spark plug, tighten 1/2 turn, after
the spark plug seats, to compress the washer.
9. When reinstalling the original spark plug, tighten 1/8
to 1/4 turn after the spark plug seats to compress the
washer.
10. Reattach the spark plug caps.
ENGINE TUNE-UP ENGINE
See your engine manual for specific information on tuning up
your engine, checking and gaping the spark plugs, etc.
NOTICE
See the engine manual supplied with your machine
for appropriate engine maintenance schedule and
troubleshooting guide for problems.
MAINTENANCE