Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Evaporation Control System: Description
The purpose of the Evaporation Control System is to prevent the emissions of gasoline vapors from the fuel tank and carburetor into the atmosphere. When fuel evaporates in the carburetor float chamber or fuel tank, the vapors pass through vent hoses or tubes to a charcoal canister. They are stored here until drawn into the intake manifold after engine begins to run. See Figureand Figure.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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