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Why 1991 Mazda RX7 engine start?

You're asking about the starting procedure for a 1991 Mazda RX7's engine. Here's a breakdown of the steps involved:

Starting a 1991 Mazda RX7 Engine

1. Check for Essential Conditions:

- Fuel: Ensure the fuel tank has sufficient fuel.

- Battery: Verify the battery has enough charge.

- Ignition: Make sure the ignition key is in the "ON" position.

2. Cold Start Procedure (Especially in Cooler Weather):

- Warm-Up: For a cold engine, consider using the choke (if equipped) or pressing the gas pedal a few times before starting. This helps enrich the fuel mixture for easier ignition.

- Throttle: On a cold engine, you may need to hold the throttle slightly open while cranking to get it started. This provides a richer air-fuel mixture.

3. Turn the Key:

- Ignition: Insert the key into the ignition and turn it to the "ON" position. This will engage the electrical systems, including the fuel pump and engine control unit.

- Crank: Press the key all the way to the "START" position, which engages the starter motor. The engine should begin to crank.

4. Starting the Engine:

- Cranking: Continue holding the key in the "START" position until the engine starts. The engine should catch and begin to idle.

- Release Key: Release the key to the "ON" position once the engine is running.

Troubleshooting Issues

If your RX7 engine won't start, consider these common issues and potential solutions:

* Battery Issues: Check the battery terminals for corrosion and tightness. If the battery is weak or dead, jump-start it or replace it.

* Fuel Delivery Problems: Check for a blocked fuel line or a faulty fuel pump.

* Ignition System: Inspect the spark plugs, wires, distributor cap, and rotor for damage or wear.

* Starter Motor: If the starter motor is faulty, you'll hear a clicking sound but the engine won't crank.

* Engine Control Unit (ECU): A faulty ECU can prevent the engine from starting.

Important Notes for RX7s:

* Rotary Engine: The RX7 uses a rotary engine, which is known for its unique design and high-revving capabilities. It's crucial to use high-octane fuel specifically designed for rotary engines.

* Maintenance: Regular maintenance is essential for keeping an RX7's engine running smoothly. This includes oil changes, spark plug replacements, and inspections of the engine's apex seals.

* Fuel Systems: Rotary engines are prone to fuel system issues, so be attentive to potential problems like clogged fuel lines or a failing fuel pump.

Expert Help:

If you're experiencing persistent starting problems, it's recommended to consult with a qualified mechanic who specializes in Mazda RX7s.