A choke valve/cable is designed to restrict the flow of air in the carburettor of an engine. This helps enrich the fuel-air mixture, improving the ability to start an engine in low temperature conditions.
Function and Operation
The choke is located before the throttle, and manages the total amount of air going into the engine. It’s usually a lever or a knob located near the handlebars or the engine itself. When activated, it enriches the air-fuel mixture in the carburettor, making it easier for your dirt bike to start, especially in colder conditions. The choke is only used when starting a cold engine.
Common Questions
Does the choke need to be on or off?
Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. The engine needs its fuel to be vaporised in order to burn it.
The choke should be used only when necessary to assist in starting a cold engine and turned off once the engine is running properly to prevent these issues.