Warning: Gasoline is extremely flammable, so take extra precautions when working on any part of the fuel system. Do not smoke or be near open flames or incandescent lamps.
1. The fuel pump is bolted to the cylinder head on the side of the engine heat shield.
2. The fuel pump is sealed, so no repair is possible. However, it can be inspected and tested on the vehicle as follows.
3. Make sure there is fuel in the fuel tank.
4. With the engine running, check for signs of leaks at all fuel line connections between the fuel tank and the carburetor. Tighten all loose connections.
5. Inspect all hoses for signs of pinching or kinking that may restrict fuel flow. Air leaks or restrictions in the intake will significantly affect fuel delivery from the pump.
6. Check for signs of leakage at the fuel pump diaphragm flange.
7. Disconnect the ignition coil wire at the distributor, carefully move the wire away from the engine to prevent sparking, then disconnect the fuel supply line from the carburetor and place it in a container.
Original version of the article on the website [MAZBOOK]
8. Crank the engine a few revolutions and check to see if there is a good splash of fuel from the open end of the line. If this is not the case, the fuel line or filter is clogged or the fuel pump is faulty.
9. Disconnect the fuel line at both ends and pump compressed air through it. If the fuel line is not clogged, replace the fuel pump with a new one.
Checking the fuel pump