Just bought a used 99 ZL 600 EFI (VIN # starts with 98 ?) that the previous owner was in the process in changing out fuel and coolant lines in regards to the throttle body. I purchased the service manual on this machine and the diagrams do make sense until I see the actual machine has both connections from the fuel pump not attached to anything and I have one free fuel line "teed" to two short lines with one going to the fuel inlet on the fuel rail and the other going to the fuel pressure regulator on the same. This does not make sense to me because if I follow the service manual one line goes from the fuel pump output to the fuel inlet on rail and a separate line goes from the rail's fuel regulator to the return connection on the pump. I am thinking the previous owner was confused or is this some "test" setup he never finished. Any comments will be appreciated as I try to sort things out.
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