1982 Mazda RX-7 GSL, Automatic TransFACTORY OEM SERVICE PROCEDURE

Altitude COMPENSATOR

NOTE: Altitude compensator can only be checked at altitudes of 1640-4920 feet.
  1. Remove air cleaner and start engine. Engine should idle smoothly. Place finger over slow port inside carburetor bore (located on right side of rear bore). With slow port covered, idle speed should drop.
  2. If idle speed does not drop, stop engine and remove compensator valve. With compensator valve removed, blow through drilled passages.
  3. Air should pass through valve from both passages at altitudes of 1640-4920 feet. If not, replace altitude compensator valve.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.