California DMV Motorcycle Knowledge Test (M1)Motorcycle Controls and Basic ManeuversEasy
When starting a cold motorcycle engine that is equipped with a choke, what is the typical correct procedure?
- AEngage full choke, start the engine, then gradually reduce choke as the engine warms.
- BStart the engine without choke, then apply full throttle to warm it quickly.
- COpen the throttle fully, engage the clutch, then press the start button.
- DEngage full choke, then ride immediately at high RPMs to warm the engine.
Show answer & explanationAnswer & explanation
Correct answer: A. Engage full choke, start the engine, then gradually reduce choke as the engine warms.
The choke enriches the fuel mixture for cold starts. Starting with full choke, then gradually reducing it as the engine warms, ensures smooth operation and prevents stalling.
Why the other options are wrong
- B. Starting a cold engine without choke will likely result in stalling or rough idling, and full throttle should not be used to warm a cold engine.
- C. Opening the throttle fully can flood the engine and makes starting difficult.
- D. Riding at high RPMs with full choke can cause the engine to run too rich, leading to poor performance and potential damage.
Cold Engine Start (Choke)
The process of using a choke mechanism to provide a richer fuel-air mixture to a cold engine to facilitate starting and warm-up.
- Choke is for cold engines only.
- Gradual reduction of choke is essential.
- Prevents stalling and ensures smooth running.
Memory trick: Choke first, then warm and wean.