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Figure 4. Basic Engine Components
INITIAL SERVICING
The engine (Figure 4) must be checked for proper
lubrication and filled with fuel prior to operation. Refer to
the manufacturer's engine manual for detailed operation
and service instructions.
1. Air Cleaner — Prevents dirt and other debris from
entering the fuel system.
NOTICE
Operating the engine without an air filter, or with a
damaged or worn air filter in need of replacement, will
allow dirt to enter the engine, causing rapid engine wear.
2. Spark Plug — Provides spark to the ignition system.
Set the spark plug gap according to the engine
manufacturer's instructions, and clean the spark plug
once a week.
PAGE 14 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
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COMPONENTS ( ENGINE )
3. Muffler — Reduces noise and emissions. DO NOT
touch the muffler while it is hot. Appearance may vary.
WARNING
4. Fuel Filler Cap — Remove to add unleaded gasoline to
the fuel tank. Make sure the cap is tightened securely.
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DO NOT overfill.
DANGER
5. Fuel Tank — Holds up to 0.9 gallons (3.6 liters) of
unleaded gasoline.
6. Engine Oil Dipstick / Oil Filler Cap — Remove to
determine if engine oil is low. Add engine oil through
this port as recommended in Table 6.
7. Oil Drain Bolt (2) — Remove to drain oil from the
engine crankcase.
8. Recoil Starter — Manual starting mechanism. Pull
the starter grip slowly until resistance is felt, then pull
briskly and smoothly to start the engine.
9. Fuel Valve Lever — OPEN to let fuel flow, CLOSE to
stop the flow of fuel.
10. Choke Lever — Aids in starting a cold engine or
starting in cold weather conditions. The choke enriches
the fuel mixture.
11. Throttle Lever — Adjusts engine speed (RPM).
Engine components can generate
extreme heat. To prevent burns, DO NOT
touch these areas while the engine is
running or immediately after operating.
DO NOT operate the engine with the
muffler removed.
NEVER fill the fuel tank while the engine
is running or hot. In the event of a fuel
spill, DO NOT start the engine until all
fuel residue has been wiped up and the
area surrounding the engine is dry. Fuel
is extremely flammable and can ignite if
it comes into contact with hot engine parts
or sparks from the ignition system.
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