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8. After draining the oil, return the machine to the
operating position.
9. Close the drain valve and remove the drain hose.
10. Fill the crankcase to the Full line on the dipstick with
fresh oil. Refer to the Filling the Crankcase with Oil.
11. Fill the fuel tank with gasoline.
12. Connect the wire to the spark plug.
13. Recycle the used oil according to local codes.
Changing the Oil Filter
Service Interval: Every 100 hours
Replace the oil filter (Figure 22) after every 100 operating
hours or yearly, whichever comes first.
1. Run the engine to warm the oil.
WARNING
Oil may be hot after the engine has been run,
and contact with hot oil can cause severe
personal injury.
Avoid contacting the hot engine oil when you
drain it.
2. Stop the engine and wait for all moving parts to stop.
3. Disconnect the wire from the spark plug.
4. Drain the engine oil; refer to Changing the Engine
Oil.
5. Place a rag under the oil filter to catch any oil that
may leak out as you remove the filter.
6. Remove the oil filter.
7. Use your finger to coat the gasket on the new filter
with oil (Figure 23).
1. Gasket
8. Install the new filter and hand tighten it 2/3 turn
only.
Figure 23
9. Fill the crankcase to the Full line on the dipstick with
fresh oil Refer to Filling the Crankcase with Oil.
10. Connect the wire to the spark plug.
11. Run the engine for about 3 minutes.
12. Stop the engine, wait for all moving parts to stop,
and check for oil leakage around the filter.
13. Add oil to compensate for the oil in the oil filter.
Refer to Checking the Engine Oil Level.
14. Recycle the used oil filter according to local codes.
Servicing the Spark Plug
Service Interval: Every 100 hours
Check the spark plug after every 100 operating hours.
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 10).
3. Clean around the spark plug.
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 24).
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
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.
20
Figure 24
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