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1. Fuel valve
8. Use your finger to coat the gasket on the new filter
with oil (Figure 26).
1. Gasket
9. Install the new filter and hand tighten it 2/3 turn only.
10. Fill the crankcase to the Full line on
the dipstick with fresh oil; refer to
5 Filling the Crankcase with Oil (page 6).
11. Connect the wire to the spark plug.
12. Run the engine for about 3 minutes.
13. Stop the engine, wait for all moving parts to stop, and
check for oil leakage around the filter.
14. Add oil to compensate for the oil in the oil filter. Refer
to Checking the Engine Oil Level (page 8).
15. Recycle the used oil filter properly.
Servicing the Spark Plug
Service Interval: Every 100 hours
Note: Use an NGK BPR5ES spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Figure 13).
3. Clean around the spark plug.
Figure 25
2. Oil filter
Figure 26
4. Remove the spark plug from the cylinder head.
Important: Replace a cracked, fouled, or dirty
spark plug. Do not clean the electrodes because
grit entering the cylinder can damage the engine.
5. Set the gap on the plug to 0.030 in. (0.76 mm)
(Figure 27).
1. Center-electrode insulator
2. Side electrode
6. Install the spark plug and the gasket seal.
7. Torque the plug to 17 ft-lb (23 N-m).
8. Connect the wire to the spark plug.
Emptying the Fuel Tank and
Cleaning the Fuel Filter
Service Interval: Every 50 hours—Check the fuel hose and
replace it if necessary.
Every 100 hours—Clean the fuel filter.
Yearly or before storage—Empty the fuel tank.
Note: The fuel filter (screen) element is located inside the
fuel tank.
1. Stop the engine and wait for it to cool down.
Important: Drain gasoline from a cold engine
only.
2. Disconnect the wire from the spark plug (Figure 13).
3. Close the fuel valve (Figure 25).
4. Disconnect the fuel line by loosening the tube clamp at
the carburetor.
5. Open the fuel valve.
6. Drain the gasoline completely from the tank and fuel
line into an approved fuel container.
7. Remove the fuel tank from the machine.
8. Close the fuel valve.
9. Pour a small amount of fuel in the fuel tank, move
the fuel around in the tank, and pour it out into an
approved fuel container.
17
Figure 27
3. Air gap (not to scale)
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