2009 Yamaha F40 Outboard Service Manual, Page 170Get this manual
Fuel system
Disassembling the vapor separator
1Remove the cooling water hoses and b2Remove the fuel hose and the drain hose d
3Remove the vapor gas hoses e, f, and the pressure regulator hose h6Remove the fuel cooler m7Remove the lead n, the pressure regulator o, the nipple p, and the O-ring q