Yamaha grey fuel hose

[tshank]

I am in the process of going through the fuel system on my 03 200 OX66, replacing filters, hp fuel pump, and the mechanical fuel pumps. I am finding that all the grey tubing that connects everything together is really hard and not pliable anymore. Can these pieces of tubing be replaced with regular marine fuel hose? I’d if so what size is it, ID..
thank you,

Tom

[99yam40]

I am not much help on that motor, but on most Yamahas I have played with, some of the hoses are formed with tight bends so using other hoses will kink trying to make the bends.

also what sizes of fuel lines do you have available where you are located?
Yamaha should be Metric