i need help going to fix buddys 88 9.9 evinrude.He had a fuel condition would only idle with the choke on it sat for two years him and a guy he was talking to at the boat ramp replaced fuel line but didnt help so i was called to go look at the moter.i think the line thay replaced was put in the wrong way i need a diagrame of fuel line routing thier is a nipple on the fuel pump with no hose .