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

Dashpot Adjustment

DASHPOT ADJUSTMENT SPECIFICATIONS

Application

RPM

B2200 (Carbureted)

⁽¹⁾ 2700-2900

Miata

⁽²⁾ 2350-2650

MPV (V6)

⁽²⁾ 3200-3800

Protege

SOHC

⁽²⁾ 2500-2900

DOHC

⁽²⁾ 2800-3200

RX7

Non-Turbo

⁽²⁾ 2700-3100

Turbo

⁽³⁾

323

⁽²⁾ 2800-3200

929 (SOHC)

⁽²⁾ 3200-3800

⁽¹⁾	Engine speed during acceleration when throttle lever separates from dashpot.

⁽²⁾	Engine speed during deceleration when throttle lever contacts dashpot.

⁽³⁾	See appropriate ADJUSTMENTS article.

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.

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