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Which TDC for cams to line up with?

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    Which TDC for cams to line up with?

    I have a Dynatek 2000 ignition in my bike, which shows TDC for cylinders 1+4 as well as 2+3. Which TDC do I use to set the cams to?

    #2
    1 and 4 is the correct mark

    Comment


      #3
      Thanks! Is it one of those standard things? Is it always cylinder one that you set at TDC or is it just 1+4 on GSs?

      Comment


        #4
        Unless otherwise stated, #1 seems to be the standard.

        .
        sigpic
        mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
        hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
        #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
        #2 son: 1980 GS1000G
        Family Portrait
        Siblings and Spouses
        Mom's first ride
        Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
        (Click on my username in the upper-left corner for e-mail info.)

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          #5
          1 or 4..ON THE COMPRESSION stroke. Unsure or cant "feel" the compression by puttingb your finger over the plug hole? Then just out a compression tester in number 4 ( since you turn the crank from then right side of the bike ) and watch it as you turn the engine over. The needle will move on the compression stroke. Remove the guage and continue bringing the piston up using a dowel or something to visually see it coming up. Go slowly and just as the dowel stops coming up then check the timing mark and set it exactly. Replace the cams per the numbers on them set as the manual shows and youll be good to go.
          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

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            #6
            Originally posted by chuck hahn View Post
            1 or 4..ON THE COMPRESSION stroke.
            Actually, until you install the cam, 1&4 have no idea which one is on the compression stroke.

            They just go up and down together, the cam will determine whether it's compression or exhaust when they go up.

            .
            sigpic
            mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
            hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
            #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
            #2 son: 1980 GS1000G
            Family Portrait
            Siblings and Spouses
            Mom's first ride
            Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
            (Click on my username in the upper-left corner for e-mail info.)

            Comment


              #7
              So as long as I have 1+4 at TDC I am good to go? Cool - thanks!

              Comment


                #8
                You can get a service manual off basscliff's site. What you seek is within. The 1100G engine is almost identical to the 1000. Please do some homework or you might mess something up.
                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


                  #9
                  Actually I have a manual. I follow it religiously when putting the engine together! BUT - the original ignition was different and had different markings. I have made it more challenging by using a Dyna 2000 ignition which has markings for TDC on both 1+4 and 2+3.

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