This engine is designed to operate on unleaded or low lead gasoline with a 91 minimum octane rating (Research Method),
The use of unleaded gasoline will lengthen spark plug and valve life, maintain engine performance longer, and reduce rust and corrosion of engine while stored.
ACAUTION! Handle gasoline with care, it
is highly flammable: A. Use approved gasoline container. B. Never remove the fuel tank cap or fill the fuel tank when the engine
is running, is hot, or indoors. Also, do not smoke when working around flammable fuel. Wipe up spilled gasoline. C. Replace fuel tank cap securely.
CARBURETOR ADJUSTMENTS
The carbu retor is adjusted at the factory. Do not make adjustments unless absolutely necessary. Factory settings are correct for normal operating conditions. If adjustments are necessary proceed as follows:
A | CAUTION! | During | operating | do not run |
the engine in confined area such as
storage building any longer than is necessary for immediate moving of the machine ouside into the air. Exhaust gases are toxic.
Opening doors and windows may not provide adequate ventilation.
Start the engine and allow it to warm up at 3000 RPM. Turn needle valve in until engine misses (lean mixture) then turn it out past smooth operating point until engine runs unevenly (rich mixture). Turn needle valve to the
1
2
1
2
3
