The choke on a gasoline-powered snowblower engine is designed to help the motor start when it is cold. The choke works by shutting the air intake to produce a richer gas mixture in the engine's combustion chamber. Operating the choke can be counter-intuitive, especially if it's been six months since you last used the equipment.
Step 1
Set the choke on full (which means closed).
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Step 2
Start the engine according to the manufacturer's instructions, including three to four pumps on the fuel primer before pulling the ignition cord or pressing the starter.
Step 3
Decrease the amount of choke slowly over several minutes by adjusting the choke lever until the engine warms up.
Step 4
Open the choke all the way once the engine is running smoothly. Do not have any choke once the engine is operating normally; this will cause excessive fuel consumption and may flood the engine, causing it to shut down.
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