Sea Foam Official video: How to clean a gasoline auto carburetor intake with Sea Foam Spray

Use Sea Foam Spray to safely and effectively clean residues and deposits from intake valves, chambers and compression rings!

  • Sea Foam Spray delivers a high concentration of petroleum cleaning solvency and lubricity to carburetor throttle valves, intake runners and valves, and chamber areas.
  • Click here for printable instructions.


Hot Soak Instructions for Gasoline Carburetor Intakes:

Getting started: Add a cleaning dosage of Sea Foam Motor Treatment to the fuel tank. Best to add at least 2 ounces per gallon of fuel when tank is low to maximize treatment concentration.

1. Start and warm engine to operating temp, then turn off accessories and shut off engine.

2. Remove the air cleaner/cover to access the carburetor throat.

3. Use a scissors to cut the Cleaning Tube to a straight length of 6 to 8 inches.

4. With the vehicle in park and parking brake applied, use a helper to start and hold the engine at 1000 RPM over factory idle spec for the duration of the spray treatment.

5. With tube attached, spray continuously until contents are empty. (Approx. 4 to 5 minutes.)

6. When can is empty, shut off the engine and allow the engine to hot soak for 5 to 15 minutes.

7. While waiting, re-attach and secure air cleaner/cover.

8. After hot soak period, start and drive the vehicle under load for at least 5 minutes.

Apply aggressive acceleration when possible and safe. Under load (working in gear) is
emphasized – Revving the engine at high RPM in park or neutral is NOT encouraged.

Using Sea Foam Spray is easy as it looks! Treating your gasoline engine intakes one or two times a year with Sea Foam Spray will help restore power and acceleration.  Sea Foam Spray also works to help overcome rough idles, hesitation, stalls, pings and flat spots!