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  1. #1
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    Omc 56 fuel pipe/hose sizes

    Anyone know the correct sizes of the fuel hoses on the later omc triple might be able to help me.
    I want to buy some new coloured fuel hoses for my outboard at the moment I am not able to get near my motor to check the sizes I need.
    I am wanting to put new hoses on all the fuel lines on my 56 omc triple.

    what I need to know is the hose inside diameter size for the 3 small hoses from the plastic 4 way manifold to carbs
    and from the manifold back to fuel pump, plus the small ones from the electric primer to inlet manifold etc.

    is the new silicone hose realy ok for petrol ?

  2. #2
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    Pretty sure its 3/16th I would use tygon hose.

  3. #3
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    Pretty sure it's 3/16" to the carb and 5/16" from the 4 way barb to the fuel pump.

  4. #4
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    yep that's correct

  5. #5
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    Thanks guys, u was thinking about the same sort of sizes, but u thought best to ask and be sure.

    I will keep looking for it in those sizes
    thanks again..

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