GRRR Bike troubles still

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • doug g
    • Feb 2026

    #1

    GRRR Bike troubles still

    Well if any of you have been reading my post you may already know my story. here is a recap. I ordered a Real gasket valve cover gasket and I had issues with my tach drive gear. Well I replaced the cam from a spare motor and used a oem valve cover gasket. Once I fired the bike up it ran fine for about two minutes and then started to run like crap. I put in new plugs, filled the carbs with carb cleaner and let it sit overnite, treated the gas in tank with sea foam. Well yesterday I drained my float bowls and installed my tank in hopes my bike would run properly. Well lo and behold it runs like garbage and now will not even start. Well I pulled the plugs and cylinder 2 and 3 were fould and one and two were perfectly clean. I also did a compression check and all four cylinders had 155 psi. I then pulled my plug caps to check for spark and each cylinder would produce a spark over about 1 cm. Well then I decided it must be a fuel problem so I pulled my carbs and pulled the float bowl off cyl 2 and nothing was staring me in the face as to a problem like a missing jet or pilot plug. I do plan on going through the carbs to clean and inspect everything and I will also replace the orings. but I really don't think my carbs are the problem. Any input would be very helpful.
  • Nessism
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    Super Site Supporter
    • Mar 2006
    • 35788
    • Torrance, CA

    #2
    Have you ever replaced the carb o-rings before? If not, it's time well spent since they dry out and get hard - including the ones on the carb body interconect tubes.

    Good luck.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

    Comment

    • mortation

      #3
      Did you try balancing the carbs and checking the air mixture screws? Are the clean plugs at least wet?

      Comment

      • doug g

        #4
        Carb oring have not been replaced before. however the bike ran like a champ prior to all of this nonsense.
        I did balance the carbs and made sure the mixture screws were all set properly. Plugs are wet and fouled. I have fuel and I have spark.

        Comment

        • TheCafeKid

          #5
          Mayhaps you have TOO MUCH fuel. I am with you on cleaning them again however, simply because it only takes something little to clog up those idle circuit passages. Give it a shot, then when you re-install, mess with the screws a bit (set them at stock first) if you still have trouble. I just kinda went thru this on my cafe project.

          Comment

          • doug g

            #6
            Trouble was not enough fuel. I finally checked the petcock and sure enough it was partially clogged. Well I cleaned it out and had a good flow of fuel and then I installed it and the bike seems to run great. I have yt to ride it but will tomorrw. I will also be ordering a new petcock to have peace of mind. I know I can buy a rebuild kit but again I want a true piece of mind.

            Comment

            • Guest

              #7
              Glad ya got her.

              Comment

              Working...