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.
1990 Mazda 929 BaseFACTORY OEM SERVICE PROCEDURE
Fuel System: Carburetor: Disassembly
- Remove dashpot vacuum hose. Remove accelerator pump connecting rod, spring and lever. Disconnect air vent solenoid valve lead from connector. Disconnect choke rod. Remove air horn retaining bolts.
- Remove air horn and choke assembly from main body. Remove air vent solenoid valve, spring and gasket from air horn. Remove float, pin and gasket. Remove needle valve. Remove sight glass assembly from main body.CAUTION: Note location and size of jets and air bleeds prior to removal. Components must be installed in correct location.
- Remove secondary slow jet, secondary slow bleed, secondary main bleed, and secondary main jet from main body. Remove primary main bleed, slow jet and plug, primary slow bleed and primary main jet from main body. See Fig 1 , Fig 2 and Fig 3 .
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:
- • 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.