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Changing the Oil Filter
Service Interval: Every 100 hours
1. Run the engine to warm the oil.
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
(page
17).
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
1
g019650
1. Oil filter
7. Use your finger to coat the gasket on the new filter
with oil
(Figure
29).
1. Gasket
8. Install the new filter until the gasket contacts the filter
base, then hand tighten the filter an additional 2/3 turn.
9. Fill the crankcase to the Full line on the dipstick with
fresh oil; refer to
3 Filling the Crankcase with Oil (page
6).
10. Connect the wire to the spark plug.
Changing the Engine Oil
(Figure
28).
Figure 28
Figure 29
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 (page 9)
14. Recycle the used oil filter according to local codes.
Servicing the Spark Plug
Service Interval: Every 100 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.
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 0.76 mm (0.030 inch); refer
to
Figure
30.
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.
Checking the Condition of the
Belts
Service Interval: Every 50 hours
1. Stop the engine and wait for all moving parts to stop.
2. Remove the belt cover
bolts that hold it to the machine housing.
3. Check the belts for any cracks, frayed edges, burn
marks, or any other damage.
18
Figure 30
3. Air gap (not to scale)
(Figure
9) by removing the 4
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