8509978
2 in. Gas Water Pump
V4.1
20
For technical questions call 1-800-665-8685
The spark plug must be properly gapped and free of deposits for the best
performance. Check local bylaws to see if a resistor spark plug is required to
suppress ignition signals. Replace the included spark plug with a resistor spark
plug if required.
1. Remove any dirt from around the spark plug area.
2. Unclip the spark plug lead and remove the spark plug with a spark plug wrench.
3. Inspect the spark plug. Replace it if damaged, badly fouled, the sealing
washer is in poor condition or the electrode is worn.
4. Check the gap with a spark plug gauge as shown in Figure 18. If necessary,
reset the gap (See Specifications).
a. Correct the gap by carefully bending the
side electrode. Check the gap after each
adjustment.
5. Install the spark plug carefully by hand to
avoid cross threading.
6. Tighten the spark plug to the recommended
torque until the gasket is compressed. See
Specifications for the correct torque rating.
7. Reconnect the spark plug lead to the spark plug.
CLEANING THE SEDIMENT CUP
CAUTION! Wear latex or rubber gloves when working on the sediment cup.
The cup may contain fuel that will cause skin irritation. Prolonged and
repeated exposure to fuel on skin may result in dry, cracked skin.
1. Switch the fuel valve (N) to the OFF position.
2. Remove the fuel sediment cup, screw and o-ring.
3. Clean the sediment cup with a non-flammable solvent or detergent and
rinse. Allow to dry.
a. Some chemicals will damage the o-ring material. Check for
compatibility or replace the o-ring.
4. Reassemble the sediment cup and o-ring.
5. Switch the fuel valve to the ON position and check for leaks. Replace the
o-ring if the installation is correct, but fuel still leaks from the cup.
Fig. 18
