Need help with my 1980 suzuki gs750l

Here is a general fuel line diagram for a 1990 Suzuki RF 600 Katana:

1. Fuel tank: The fuel tank holds the gasoline and is typically located on top of the motorcycle frame.
2. Fuel petcock: The fuel petcock is a valve located on the bottom of the fuel tank that controls the flow of gasoline to the engine.
3. Fuel filter: The fuel filter is located between the fuel tank and the carburetors and helps to remove impurities from the gasoline.
4. Fuel lines: The fuel lines connect the fuel tank, petcock, fuel filter, and carburetors together in a specific sequence.
5. Carburetors: The carburetors mix the gasoline with air and deliver the mixture to the engine cylinders for combustion.

The exact fuel line routing and connections may vary depending on the specific model and year of the Suzuki RF 600 Katana, so it is important to refer to the owner's manual or a detailed service manual for accurate information. Additionally, any modifications or repairs to the fuel system should be done by a qualified technician to avoid damage to the motorcycle or injury to the rider.

Yes it will work you might have a different design which I doubt but the function will be the same

in 1980 it is pretty much forward from fuel tank to fuel pump from fuel pump to carburetor ....the return line from pump to tank

hope it helps

The petcock has a diaphragm and needs a vacuum to allow fuel to flow, It is a safety fuel shut off, if the engine stops NO VACUUM, NO FUEL to carbs, there is usually a vacuum take off on the inlet manifold pipe between the carb and the engine. Hope that helps

most are in tight and 1 and 3/4 out

.Fuel tank empty.
. Fuel cap or fuel tank not venting properly.
. Fuel filter clogged with rust or dirt.
. Fuel valve not in the on or reserve position.
. Vacuum line to fuel valve cracked, broken, pinched, or missing.
. Fuel valve/petcock clogged or diaphragm cracked, cut or torn.
. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
. Fuel pump not working.
. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
. Carburetor inlet clogged.
. Carburetor float or needle and seat stuck.
. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.