Operation
Starter cord kickback (rapid retraction) can
result in bodily injury. Broken bones, frac-
tures, bruises, or sprains could result.
6. When starting engine, grasp starter grip handle and
pull slowly until you feel some resistance. Then pull
rapidly to start engine.
7. Return starter grip handle slowly. DO NOT let rope
"snap back" against starter.
8. When engine starts, slowly move choke lever to RUN
position as engine warms. If engine falters, move
choke lever to CHOKE position, then back to RUN
position.
9. If engine fails to start after 5 pulls, move choke lever
to RUN position, and repeat steps 6 through 9.
E
D
Figure 5-5. Start the ST20 Water Pump
NOTE: It is normal for the Water Pump to fluctuate
speed while the system is self priming due to air
pockets in the suction hose.
Contact with muffler area can result in
serious burns. Exhaust heat/gases can
ignite combustibles, structures or
damage fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust
gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides
of water pump including overhead.
• It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any for-
est-covered, brush-covered, or grass-covered land
unless the exhaust system is equipped with a spark
arrester, as defined in Section 4442, maintained in
effective working order. Other states or federal jurisdic-
tions may have similar laws.
Water Pump
• Replacement parts must be the same and installed in
the same position as the original parts.
5.5 — H
S
OW TO
TOP
1. Move throttle control lever on engine to "Low" (Turtle)
position (Figure 5-6) (if applicable).
2. Turn the engine ON/OFF switch to the OFF (0) posi-
tion.
3. Turn the fuel valve to the OFF (0) position (if applica-
ble).
4. Allow the engine to cool thoroughly.
5. After cooling, remove the priming plug and drain plug
from the pump casing and allow it to drain com-
pletely.
Never operate a damaged or defective pump.
To prevent accidental starting, remove and
ground the spark plug wire before performing
any service.
NOTE: The owner/operator is responsible for all peri-
odic maintenance. Complete all scheduled mainte-
nance in a timely manner. Correct any issues before
operating the pump. Improper maintenance will void
the pump's warranty.
Figure 5-6. Throttle Position
Y
OUR WATER PUMP
17