Make sure the machine is in the parking brake, then depress the clutch pedal and place the gear lever in neutral (or make sure it is already in the correct position). This must be done because sometimes the car is put into gear when the engine is not running, so that it stays in place, thereby replacing the "handbrake".
If you start the car with the clutch not disengaged and the gear not disengaged, the following can happen: when the engine is started, the car will start to move forward sharply. This can get you into trouble.
To avoid them, it is necessary to turn the ignition key clockwise before the starter operates, only after you have made sure that the gear lever is in neutral. The ignition key must be released immediately after starting the engine.
Advice. When in doubt that the car is in neutral, start the engine with the clutch pedal depressed. After the engine starts running, try slowly depressing the clutch pedal. If the car starts moving, you must immediately depress the clutch pedal and disengage the gear. And so that no troubles arise, always, before starting the engine, check whether the car is on the handbrake.
If the gear is still engaged, this precaution will help prevent the car from moving and the engine will simply stall.
To start a cold engine, an enriched fuel mixture is required. The mixture is automatically adjusted at start if you have a carburetor engine with an automatic choke control or an injector. Cars with a conventional carburetor are equipped with a manual choke. This flap must be closed at the time of start-up in order to ensure an enriched composition of the mixture. This is achieved by extending the control stick. After pulling out the choke knob, the cold engine starts as described earlier. As the engine warms up, its speed will begin to increase. Correct the rpm by slightly recessing the handle, achieve small (about 1500 rpm), but stable rpm.
A warmed-up engine starts with a fully open air damper, which prevents the mixture from re-enriching.