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GS400 vs. GS425 Manual (Valve Clearances)

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    GS400 vs. GS425 Manual (Valve Clearances)

    I'm looking for a Suzuki service manual for my GS425 and my understanding is that these two bikes are essentially the same in most respects.
    I noticed on ebay I could find the GS400, and also a GS425 "supplementary" manual, I assume to cover the few places where the two bikes differ?

    Am I understanding this right? I couldn't find a manual specific to the 425.

    Anyhow I'm trying to check valve clearances soon and I'm trying to find out what they need to be, so if you know that tidbit or have a manual nearby...how's about sharing them numbers?

    #2
    The bikes are identical in valve adjustment; clearance cold is .03 - .08mm or .0012 - .0031" .
    '82 GS450T

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      #3
      Turn the engine over until the cam lobe points away from the bucket and then measure clearance. Turn over the engine using the large hex on the end of the RH side of the crankshaft. Removing the spark plugs eases the process of turning over the engine but it's not strictly necessary.
      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

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        #4
        Originally posted by Nessism View Post
        Turn the engine over until the cam lobe points away from the bucket and then measure clearance.
        Please note that this procedure is only correct for the two-cylinder GSes. The fours have a completely different procedure.
        In fact, if you do them using this procedure, you will get wrong readings.

        .
        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
          Thank you all VERY much

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