How do you activate the automatic choke?
Watch the butterfly valves inside the carburetor while turning the automatic choke element clockwise until the butterfly valves are standing straight up. Turn the choke element counterclockwise until the butterfly valves are fully closed. Tighten the three automatic choke element screws with the screwdriver.
What sets the automatic choke?
Automatically – An automatic choke uses a metal spring to open and close the choke plate. The spring is wound in a housing and attached to the choke linkage on one end. As the engine warms up, it warms the metal spring. As the spring warms, it expands, rotates, and opens the choke plate.
Do automatics have a choke?
Most new cars are fitted with an automatic choke rather than a manual one. The choke automatically opens and closes the choke butterfly (or valve ) in the carburettor depending on the temperature of the engine .
How do I know if my automatic choke is working?
If you have a multimeter you can test the power supply by disconnecting the automatic choke and touching the meter leads onto the wires which the choke was connected to whilst running the engine at a fast tickover – (make sure not to touch them together!) The wires should give you a reading of 12-14volts AC.
When the choke is on is it open or closed?
The choke is only used when starting a cold engine. When doing a cold start, the choke should be closed to limit the amount of air going in. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up.
How long should an electric choke take to open?
At 5°-10°C (41°-50°F), the choke plate should be fully open in about ten minutes. Check for bent choke linkage and a defective thermostat cap. And ensure the fast idle cam (screw) is properly set.
How do you start a choke?
A typical starting procedure for an engine with a choke might be:
- Close the choke (usually on carburetor).
- Set the throttle control (if any) to the START or HIGH position.
- Pull the starter cord once or twice (if it doesn’t start on the first one).
- If it still doesn’t start, open the choke half way.
Should choke be up or down?
If the engine isn’t running it doesn’t make any difference where it is. The choke should be off (open or down) when you’re riding. Just remember to shut off the fuel petcock when the bike is parked.
