The carburetor choke closes by using a bimetallic spring or an electric actuator that responds to engine temperature. When the engine is cold, the choke valve is partially closed to restrict airflow, enriching the fuel mixture for easier starting. As the engine warms up, the bimetallic spring or actuator gradually opens the choke valve, allowing more air to mix with the fuel for optimal combustion. This process is crucial for maintaining engine performance during different temperature conditions.
It is a carburetor where the engine coolant is routed through the choke system of the carburetor. When the coolant is cold the choke will close. As the engine coolant heats up it opens the choke.
Manual choke
no
To install a choke on a Rochester carburetor, first ensure the carburetor is clean and the engine is off. Remove the air cleaner and locate the choke housing on the carburetor. Position the choke plate within the housing and secure it with screws, ensuring the spring is properly oriented. Finally, connect the choke linkage to the throttle lever and adjust it as necessary for proper operation.
A common cause for an automatic choke to stick in a 318 Dodge truck is a dirty carburetor. A spray can be used to clean the carburetor to stop the choke from sticking.
The choke control should have a cable attached to it that attaches to the choke on the carburetor at the other end. If you have no movement at the carburetor when you move the choke lever, look for the cable to be disconnected at either the choke lever or the carburetor.
Choke Cleaner
An automatic choke is connected to the carburetor on small engines. To get a new automatic choke, a new carburetor will need to be purchased. It is easier to install a manual choke and less costly. Kits for this are sold at most automotive repair stores.
I assume your question was "do you ride an Xr100 with the choke on?". In response to that the answer is no. If you are having to run it with the choke on, that is an indication of clogged jets in the carburetor which will require removing the carburetor, disassembling, cleaning, reassembling and reinstalling on the bike.
The carburetor has an electric choke that is possibly shorted.
grab it around the throat (carburetor) and choke it until it starts.
The electric choke wire connects to the electric choke assembly on the carburetor. It's a round, black plastic assembly that is on the side of a STOCK carburetor. There SHOULD be a connection on the "HOT" side of the coil that lets you connect the choke wire.