Air Filter
A dirty air filter will reduce the life span of the engine, make it difficult to start the engine, and reduce the unit’s performance.
• To clean, remove the air filter cover.
• Carefully pull the air filter out by lifting up along the edges.
• Remove dirt from filter by tapping on it or having it blown out. Replace with new filter annually.
• Reinstall air filter so that it seals and replace air filter cover.
Checking Spark Plug
• Disconnect the spark plug wire from the spark plug.
• Before removing the spark plug, clean the area around its base to prevent debris from entering the engine.
• Clean carbon deposits off the electrode with a wire brush.
• Check the electrode gap and slowly adjust to .700 mm - .80 mm (.028 - .031") if necessary.
• Reinstall spark plug and tighten to Torque 22.0 – 26.9 Nm (16-20 ft-lb).
• Reconnect spark plug wire.
• If spark plug is worn replace only with an equivalent replacement part. Spark plug should be replaced annually.
(BOSCH F7TC, NGK BP6ES, CHAMPION N9YC or Equivalent)
Fig 11
Fig 12
Draining Fuel Tank and Carburetor
To help prevent gum deposits in the fuel system, drain the fuel from the tank and carburetor before storing the unit for long
periods of time. This will help prevent starting problems in the future. If the unit is stored with fuel and the fuel becomes
stale or turns gummy or to varnish the warranty does not cover this repair or service.
Draining the fuel tank
• Turn the engine OFF.
• Turn the fuel valve to the OFF position.
• Remove the fuel line that leads to the carburetor from the petcock by squeezing the ends of the hose clamps and
sliding the fuel line off.
• If needed, install a fuel hose that will extend to a suitable fuel container large enough to catch the fuel being drained
from the tank.
• Turn the fuel valve to the ON position.
• When the fuel has drained from the tank, close the fuel valve and reinstall fuel line securely on petcock.
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