What causes flooding on a rotary RX-7?
The RX-7 is well known for flooding problems. One of the most common is caused by a “short start” condition. The “short start” is when someone starts the vehicle and turns it off before it is allowed to reach full operating temperature. The typical situation is moving the vehicle from one parking spot to another (ex: from garage to driveway).
What to do before a carb rebuild kit?
That said, BEFORE YOU START: 1) Get a hold of a carb rebuild kit. -I’ve been able to re-use gaskets in the past, but most had a tendancy to stick to the carb sections and rip. -The washers for the fuel inlet/outlet hoses have a tendancy to leak a bit.
Do you need to rebuild the Nikki carb yourself?
Rebuilding the RX-7’s Nikki Carb yourself IF IT AIN’T BROKE, DON’T FIX IT! I’ll start off with that bit of advice. I’ve had a lot of headaches with these carbs to the point where I’d say if it’s running perfectly fine, don’t create headaches for yourself by pulling it apart unnecessarily. That said, BEFORE YOU START:
How does the carburetor work on an RX-7?
The RX-7s carburetor has multiple jets or “fuel circuits;” each corresponds to a specific throttle position. The idle jet controls mixture with the throttle all the way closed. The primary jets and secondary jets in combination control the mixture at open throttle.
What kind of engine does a Mazda RX-7 have?
Mazda’s RX-7 has a fundamentally different kind of combustion engine; it’s a rotary engine. However, it is still an internal combustion engine and fed with a carburetor. Non-turbo RX-7s used Nikki four-barrel downdraft carburetors from the first model in 1979 through 1984, and in some models through 1985.
What should idle speed be on a Mazda RX-7?
Idle speed is the only real “adjustment” on the RX-7’s carburetor. Everything else is a “replacement, rebuild or modification.” You’ll find a single, slotted brass screw on the side of the carburetor that controls the air/fuel mixture at idle. Idle should rest at 850 rpm.
That said, BEFORE YOU START: 1) Get a hold of a carb rebuild kit. -I’ve been able to re-use gaskets in the past, but most had a tendancy to stick to the carb sections and rip. -The washers for the fuel inlet/outlet hoses have a tendancy to leak a bit.