1980 Suzuki gs850L fuel and vacuum line
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  1. #1

    1980 Suzuki gs850L fuel and vacuum line

    Need help figuring out where fuel and vacuum lines go there at least 3 or 4 spouts from the carbs i have no idea where everything goes lol,

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  3. #2
    M-J Lifetime Achievement Award
    My Bike(s)
    Perth WA
    Usually the spouts, vacuum ports, have little black caps on them and the fuel valve vacuum is from number three from memory. This will be an extra port and may also be slightly larger. Anyway you should be able to work it out from the length of vacuum pipe you have. This pipe needs to go to the rear of the fuel valve.

    The fuel line goes to a 't' in the fuel rail that connects all four carbs. There should be a single breather line that loops over the frame near the air box and comes out just in front of the swing arm. This connect to another 't' that allows all the float bowls to breath.

    Also those little caps have to be in position so you dont lose vacuum from the carbs. I ended up fitting a set of fuel line to my GS 750 ports a few years ago so I could do a sync without having to mess around trying to get to them also meant I didnt have to remove the tank.

    Good luck
    Last edited by Aussie Steve; 08-03-2018 at 10:06 PM.
    Smoke me a kipper I'll be home in time for breakfast

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