Announcement

Collapse
No announcement yet.

New to me 1980 GS450S

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    New to me 1980 GS450S

    Just got this 80 gs450 last night. As of now it hasnt ran since June, but today I got it running while on choke. Id give it some gas and it would die. I should add that it is very inconsistent, doesnt start up every time. It also seems the fuel line does not have a "consistent flow". like fuel is very sporadic in being pumped, and theres an air bubble. I have a video of it, but not sure how to show it on this forum.

    #2
    Set petcock to pri., that should hold fuel delivery wide open. Welcome aboard & good luck.
    1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

    Comment


      #3
      Start with your basics. I'd just assume the gas is old and drain the tank taking out the petcock and giving the screen a good cleaning. You'll notice some washers on the petcock mounting bolts, get some fiber washers the same size at your local hardware store to replace those. Swapping out the fuel lines with new ones is cheap and easy, head down to the auto parts store and get some bulk line for that. While your at it grab a new piece of vacuum line that goes from the left side carb to the petcock. Check the resistance of the spark plugs caps, they should be 5k ohms, clip off a small bit of the spark plugs leads before reinstalling to assure good contact.
      1980 Yamaha XS1100G (Current bike)
      1982 GS450txz (former bike)
      LONG list of previous bikes not listed here.

      I identify as a man but according to the label on a box of Stauffers Baked Lasagne I'm actually a family of four

      Comment


        #4
        Cool bike. It would probably be best to fully go thru the carbs / fuel delivery from start and eliminate questions.
        sigpic
        When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

        Glen
        -85 1150 es - Plus size supermodel.
        -Rusty old scooter.
        Other things I like to photograph.....instagram.com/gs_junkie
        https://www.instagram.com/glen_brenner/
        https://www.flickr.com/photos/152267...7713345317771/

        Comment


          #5
          Originally posted by dorkburger View Post
          Cool bike. It would probably be best to fully go thru the carbs / fuel delivery from start and eliminate questions.
          Normally I'd advise that too but if the bike ran last June it would be better to take the "if it ain't broke don't fix it" approach.
          1980 Yamaha XS1100G (Current bike)
          1982 GS450txz (former bike)
          LONG list of previous bikes not listed here.

          I identify as a man but according to the label on a box of Stauffers Baked Lasagne I'm actually a family of four

          Comment


            #6
            If it will only run on choke it is broke. Ethanol gas takes about 8 weeks of sitting before it starts to affect idle and starting circuits. Fix it right and keep that crap out of there!
            Current Rides: 82 GS1100E, 00 Triumph 955 Speed Triple:twistedevil:, 03 Kawasaki ZRX1200, 01 Honda GL1800, '15 Kawasaki 1000 Versys
            Past Rides: 72 Honda SL-125, Kawasaki KE-175, 77 GS750 with total yosh stage 1 kit, 79 GS1000s, 80 GS1000S, 82 GS750e,82 GS1000S, 84 VF500f, 86 FZR600, 95 Triumph Sprint 900,96 Triumph Sprint, 97 Triumph Sprint, 01 Kawasaki ZRX1200, 07 Triumph Tiger 1050, 01 Yam YFZ250F
            Work in progress: 78 GS1000, unknown year GS1100ES

            Comment

            Working...
            X