First. Turn the lever handle on the threeway cock until it points to the kerosene fuel pipe coming from the large tank in the base.

Second. Close the air damper about two notches on the ratchet. The air damper is wide open when the handle on top of the damper is in line with the air pipe and is pointing to the engine base.

Third. Open the fuel valve another quarter of a turn or until the kerosene explodes evenly and the engine runs regularly.

When you change from one fuel to the other, do not throw off the load, just continue your work until the wate in the reservoir on top of the engine is boiling. Then add a little water from time to time until the reservoir is full.

The engine will give the best results when the water boils, as heat helps to vaporize the kerosene. It will not hurt the engine at all for the water to boil, for long as you have water in the reservoir covering the cylinder it cannot get too hot

Fourth. After the engine has been running, on kerosene for about three or four minutes, open the water valve one-quarter turn or about eight marches on the dial, which admits warm water from the cylinder head into the mixing valve, where it is thoroughly mixed with the kerosene and air, allowing the engine on the suction stroke to take in a mixture that will burn clean and not leave any carbon deposit.

Be careful never to use too much water, as the engine will lose power; on the other hand, if you do not use enough water there will be a slight pounding in the cylinder. To overcome this open the water valve one notch at a time until the pounding stops.

HOW TO STOP THE ENGINE.

First. Close the water valve by turning to the right as far as it will

Second. Put a small quantity of gasoline in the small tank and turn the handle on the three-way cock back to gasoline, so the last two or three explosions will be on gasoline. This will remove all the kerosene and water from the mixing valve so the engine will be easy to start the next time you want to use it.

Third. Close the fuel valve by turning to the right as far as it will go.

Fourth. Shut off the oil. In cold weather, be sure to drain all the water out of the reservoir by opening the drain cock at the bottom of the cylinder and disconnect the water pipe from the mixer by loosening the union nut so the water will drain from this pipe and the cylinder head.

If you are working your engine on a big job running all day, when you shut down at noon your engine will be very hot. If you do not take more than an hour for lunch, when returning to work you can start the engine on kerosene direct and will not have to use the gasoline, as the engine will be hot enough to start right from kerosene.

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