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ORIGINAL INSTRUCTIONS
Changing the Engine Oil and Filter
Service Interval: After the first 50 hours
Every 100 hours—Change the engine oil and filter.
Crankcase capacity: approximately 1.9 L (2.0 US qt) with the filter.
1. Start the engine and let it run for 5 minutes. This warms the oil so that it drains better.
2. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains
completely, shut off the engine, verify the brake is engaged, and remove the key.
3. Place a pan below the oil drain. Remove the oil drain plug to allow oil to drain.
4. When the oil has drained completely, replace the plug.
Note: Dispose of the used oil at a certified recycling center.
5. Place a shallow pan or rag under the filter to catch oil.
6. Remove the old filter and wipe the surface of the filter adapter gasket.
7. Pour new oil of the proper type through the center hole of the filter. Stop pouring when the oil reaches the
bottom of the threads.
8. Allow a minute or 2 for the oil to be absorbed by filter material, then pour off the excess oil.
9. Apply a thin coat of new oil to the rubber gasket on the replacement filter.
10. Install the replacement oil filter to the filter adapter. Turn the oil filter clockwise until the rubber gasket
contacts the filter adapter, then tighten the filter an additional 1/2 turn.
11. Remove the oil fill cap and slowly pour approximately 80% of the specified amount of oil in through the
valve cover.
12. Check the oil level; refer to Checking the Engine-Oil Level.
13. Slowly add additional oil to bring the level to the F (full) mark on the dipstick.
14. Install the oil fill cap and dipstick.
Servicing the Spark Plugs
Service Interval: Every 200 hours—Check the spark plugs.
Ensure that the air gap between the center and side electrodes is correct before installing each spark plug.
Use a spark-plug wrench for removing and installing the spark plugs and a gapping tool/feeler gauge to check
and adjust the air gap. Install new spark plugs if necessary.
Removing the Spark Plugs
1. Shut off the engine, verify that the brake is engaged, and remove the keys.
2. Pull the wires off the spark plugs
3. Clean around the spark plugs.
4. Remove both spark plugs and metal gaskets.
Checking the Spark Plugs
1. Look at the center of both spark plugs. If you see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator usually means the air cleaner is dirty.
2. Check the gap between the center and side electrodes.
3. Bend the side electrode if the gap is not correct.
