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Overheating(?) Problem, help please?

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    Overheating(?) Problem, help please?

    I am a proud owner of a 1978 GS1000 and this spring decided I'd buy my wife a 1983 GS450E. She wanted to learn to ride and I thought it would be a good bike to learn on. I got the bike for an easy $200, but it needed new forks so I picked up a 1982 GS650 for parts. I replaced the forks, plugs, wires, oil filter and oil. It seemed to run okay, but acted like it needed the carbs cleaned. I decided that since I was gonna be fiddling in the area that I would install some K&N pod filters. I removed and threw away the factory air box, cleaned the carbs, jetted to 125 from 120, put the carbs back on and installed the K&N filters. It starts up just fine now, but I noticed today that it began to smoke. I turned the bike off and checked the source of the smoke. It appeared to be coming from the right cylinder. It was then that I noticed that the right exhaust was extremely hot and the left was not nearly as much. I could place my hand on the left exhaust but not the right. What causes this? Would it be worth my time to just swap out the 450 for the 650 that is on the parts bike? Would the 650 even fit on the 450's chassis? Any input is greatly appreciated!

    #2
    sounds like its running real lean?

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      #3
      Originally posted by Woodsy View Post
      sounds like its running real lean?
      If it were running lean, why would the right cylinder be overheating and the left cylinder not be?

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        #4
        you balance the carbs?
        Come to think of it I had that problem intermittently and it was cured with new connectors on the coils and regrounding the R/R and ignitor to the - battery post.
        Last edited by Guest; 07-08-2011, 03:19 PM.

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          #5
          PIpes are supposed to be hot, your question should be why is the left one cold?
          Obviously the left cylinder is not firing much.
          Spark, fuel, compression?
          That's really all there is to it.


          Life is too short to ride an L.

          Comment


            #6
            Originally posted by tkent02 View Post
            PIpes are supposed to be hot, your question should be why is the left one cold?
            Obviously the left cylinder is not firing much.
            Spark, fuel, compression?
            That's really all there is to it.
            +1, this makes sense to me.

            Smoke could be just not running for a long time and crud burning off, although if you idled it stationary for any more than about 10 - 15 minutes that could be a worry.

            Being a 450, I'd definitely be checking out the ignitor, they seem prone to dying lately...

            Definitely tick the list off though:

            - Valves
            - Proper carb clean (you did it properly right?)
            - Carb sync
            - Electrical clean up and ensure all grounds are better than good
            - Check spark plug caps and gaps
            - Check coils
            - Check ignition circuit

            Just my 2 cents...
            1982 GS450E - The Wee Beastie
            1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

            sigpic

            450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

            Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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              #7
              I don't know why you threw the factory intake hardware away. It's always good to have that stuff around, even if you want to try to make the bike run worse with pods for a while.
              NO PIC THANKS TO FOTO BUCKET FOR BEING RIDICULOUS

              Current Rides: 1980 Suzuki GS1000ET, 2009 Yamaha FZ1, 1983 Honda CB1100F, 2006 H-D Fatboy
              Previous Rides: 1972 Yamaha DS7, 1977 Yamaha RD400D, '79 RD400F Daytona Special, '82 RD350LC, 1980 Suzuki GS1000E (sold that one), 1982 Honda CB900F, 1984 Kawasaki GPZ900R

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