How Primer Bulbs Work
What is a Primer Bulb?
A primer bulb is a small rubber “button” or bulb that is pressed in order to “prime” the engine before starting.
Location:
Typically located adjacent to the carburetor
Material:
Generally made of rubber or other flexible material
How it works:
- Primer bulb is pressed and released
- When released a vacuum is created and fresh fuel is drawn into the intake fuel line
- The intake fuel line deposits fuel into the carburetor making it ready or “primed” for combustion
Maintenance tips:
- Keep an eye on your primer bulb for corrosion and wear & tear. Not much maintenance is needed aside from replacing it if it becomes damaged or stops working properly
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