MAINTENANCE
SPARK PLUG | 3. Before installing the spark plug, coat |
| the threads lightly with oil for easy re- |
Check the spark plug every 25 hours. Re- | moval. Tighten the spark plug to a torque |
place the spark plug if the electrodes are | of 15 |
pitted or burned or if the porcelain is |
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cracked. | Feeler Gauge |
| 0.035” |
1.Make sure the spark plug is clean. Clean the spark plug by carefully scrap- ing the electrodes (do not sand blast or use a wire brush).
2. Check the spark plug gap with a feeler |
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gauge. See “Product Specifications” for | Spark Plug |
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the correct spark plug gap and replace- | Figure 11 |
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ment spark plug. |
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HOW TO CLEAN THE AIR FILTER
The engine uses a foam air filter that can be cleaned and reused. Clean and oil the air filter every 25 hours. Clean more often in dusty conditions. Remove and clean the air filter as follows:
CAUTION: Never run the engine without the air filter installed. An air filter clogged with dust can result in loss of engine power and can cause excessive wear or damage to the engine. If the air filter is clogged, clean or replace immediately.
1. | Disconnect the spark plug wire from the |
| spark plug. |
2. | Remove the screws from the air filter |
| cover (see Figure 12). Remove the air |
| filter cover and the air filter. |
3. | Wipe the cover and the inside of the air |
| filter housing with a clean cloth. |
4. | Clean the air filter in a solution of water |
| and household detergent. Rinse tho- |
| roughtly in clean water. |
6.Cover the outside of the air filter with oil. Use the same type of oil as used to make the fuel mixture. Lightly squeeze the air filter to distribute and remove any excess oil.
7.Put the clean air filter into the air filter housing.
8.Install the air filter cover and secure with the screws as shown.
9.Connect the spark plug wire to the spark plug.
Air Filter
Cover
5. Wrap the air filter in a dry clean cloth. |
Filter Housing
Screw
Squeeze out (do not twist) all solution |
until dry. |
Figure 12
CYLINDER EXHAUST PORTS
Clean the cylinder exhaust ports after every 75 hours of operation. For this procedure, we recommend that you take your unit to a Au- thorized Service Center.
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