2004 Yamaha 150hp VMAX Fuel Lines

[Pat Curtis]

I'm looking to replace my fuel lines and primer bulb. The local store has hose sizes in 5/16 and 3/8. Just wondering if I have to match them (I think they're 5/16)?

Also, how do I flush out the fuel filter? Is it as simple as taking it apart and washing it with dish soap?

Thanks.