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    1997 GP1200 fuel line diameters

    I noticed that the fuel line hose diameter to my fuel filter is 6.3/6.4mm and from the filter to the carb intake it is 8mm. Not sure if I replaced this in the past.

    Book shows L400 fuel line hoses to the filter, primary and reserve from the rotary valve but gives no diameter.

    What were the stock fuel line hose diameters? What is the diameter of L400 Yamaha hose???

    Thanks!
    Last edited by gp1200x; 08-09-2015 at 03:36 PM.


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