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Need to know the proper way to check valve clearances on my 85 GS550L

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    Need to know the proper way to check valve clearances on my 85 GS550L

    I found this Suzuki Method in a previous posting:
    The Suzuki method is... (found in the archives):

    ----------------------------------
    turn crank until
    #1 exhaust cam lobe pointing forward parallel with the top of the head
    - check #1 exhaust
    - check #2 exhaust

    rotate crank 180 degrees
    #1 intake cam lobe pointing up perpendicular to the top of the head
    - check #1 intake
    - check #2 intake

    rotate crank 180 degrees
    #4 exhaust cam lobe pointing forward parallel to the top of the head
    - check #3 exhaust
    - check #4 exhaust

    rotate crank 180 degrees
    #4 intake came lobe pointing up perpendicular to the top of the head
    - check #3 intake
    - check #4 intake
    ----------------------------------

    I think it's easier to judge when a lobe is straight up, so for the steps where one lobe is supposed to be sideways, I look at the other lobe and make sure it's straight up (from the head surface). The cam retainer block thingies and bolts are good points of reference


    Is this correct?? Does this apply to all 4 cylinders??

    Does anyone know the specs an '85 GS550L ?? I've not done this before, so I'm trying to get prepared.

    I've read about shims & the like, but this engine is the 16 valve flavor so I believe I don't need them?? (Haven't taken off the covers to look yet.)

    Thanks for the help!
    '85 GS550L - SOLD
    '85 GS550E - SOLD
    '82 GS650GL - SOLD
    '81 GS750L - SOLD
    '82 GS850GL - trusty steed
    '80 GS1100L - son's project bike
    '82 GS1100G - SOLD
    '81 GS1100E - Big Red (daily rider)

    #2
    I adjust them EXACTLY as the factory manual states.
    Just out of curiosity, I checked all reads with the cam lobes straight up (though it took more engine rotation) and got different clearance reads than when simply following the quicker, and in my opinion, more accurate, factory method.
    I don't know what the clearance range is for your '85 550. They are screw type adjuster, no shims.
    Be sure the motor is stone cold when checking. Sitting overnight is best.
    And on the seventh day,after resting from all that he had done,God went for a ride on his GS!
    Upon seeing that it was good, he went out again on his ZX14! But just a little bit faster!

    Comment


      #3
      I do mine one at a time (well two with sixteen valve) with the cam lobe pointing straight up and them double check them with the cam end notch method.
      1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
      1985 GS1150ES stock with 85 Red E bodywork.

      Comment


        #4
        Thanks guys, I assume when you say "I adjust them EXACTLY as the factory manual states." you are referring to the Suzuki method I included with my question.

        I don't have a manual of any sort (yet), so I appoligize if my questions are basic & boring. I'll call a dealer & get the clearances,

        Thanks again - this site is terrific!!
        '85 GS550L - SOLD
        '85 GS550E - SOLD
        '82 GS650GL - SOLD
        '81 GS750L - SOLD
        '82 GS850GL - trusty steed
        '80 GS1100L - son's project bike
        '82 GS1100G - SOLD
        '81 GS1100E - Big Red (daily rider)

        Comment


          #5
          dload the manual at http://www.repairmanualclub.com/

          you will need to sign up but that is simple

          yuou can then download the large manual there.

          prepare to wait it is a slow site

          Comment


            #6
            Thanks - it's downloading as we speak (?).
            '85 GS550L - SOLD
            '85 GS550E - SOLD
            '82 GS650GL - SOLD
            '81 GS750L - SOLD
            '82 GS850GL - trusty steed
            '80 GS1100L - son's project bike
            '82 GS1100G - SOLD
            '81 GS1100E - Big Red (daily rider)

            Comment

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