Oil pan bolt wrench size

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  • Anonymous
    #1

    Oil pan bolt wrench size

    Please don't make fun of me. Ok, just a little bit. What the heck is the correct wrench size to remove the oil pan bolt from an '82 GS 650GL? The Clymers says 13/16--ya, maybe with the help of a hammer that's the right size.

    21mm? 22mm? 7/8?

    A little help and some gentle ridicule would be appreciated.


    Thanks,

    Rich
    Tags: None
    • lhanscom
      #2
      I think mines 18mm, but it may be different on your bike. I think they try to make it the same size as your spark plug wrench.

        Comment

        • Anonymous
          #3
          Thanks, but my bike must be different. It's not an 18mm . . . my sockets go up to 19mm and that won't even fit on. 13/16 is a no go and 7/8 is too big . . .

          hmnph.

            Comment

            • Anonymous
              #4
              Originally posted by rtaylor
              Thanks, but my bike must be different. It's not an 18mm . . . my sockets go up to 19mm and that won't even fit on. 13/16 is a no go and 7/8 is too big . . .

              hmnph.
              I have the same problem on my 450.

              Maybe I'll bust out the caliper today and get the official word.

              Michael

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                • mdole
                  #5
                  I think I use a 21mm on mine I'll have to check and get back to you when I have a chance at home. I think mine would have worked with the spark plug wrench but looking closely at it I can see the edges are messed up.

                  I think one of the previous owners really messed it up. The plug was pretty hard to remove on my first oil change and the threads feel a little spongy but so far I have been able to get it to seal up and stay in place by using a new crush washer every time and torquing it down.

                  Mike

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                    • Anonymous
                      #6
                      21mm over here, 31 for the sprocket nut.

                      Steve

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                        • earlfor
                          Forum LongTimer
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                          GSResource Superstar
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                          • May 2002
                          • 42413
                          • off grid cabin 1/24/26 7pm
                          #7
                          I believe your need a 22 mm.

                          Earl :-)
                          Komorebi-The light filtering through the trees.

                          I would rather sit on a pumpkin and have it all to myself than be crowded on a velvet cushion. H.D.T.

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                            • Motorcyclemodeller
                              #8
                              21 mm socket on mine!

                              Dr. Dre

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                                • Anonymous
                                  #9
                                  Digital caliper reads 21.33 mm on oil pan plug. I'll bet it's a bit inflated due to some mangled corners, so I vote for a 21 mm wrench.

                                  Michael

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                                    • Anonymous
                                      #10
                                      Roger that. Thank you, gentlemen. Now I'll need to make only one more trip to the auto store . . . for now.

                                      Ride well

                                      Rich

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                                        • Dave_A
                                          #11
                                          Same size as the spark plugs (21mm)

                                          Use a plug wrench, save the bux...

                                            Comment

                                            • Anonymous
                                              #12
                                              I've been using the spark plug socket for years (18) on my 5 GS's. No problem at all with fitting.

                                              Nick

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                                                • Einar J Skog
                                                  #13
                                                  HI

                                                  Suzuki use 21mm head-- 14x1.25mm tread on all MCs,
                                                  at least from DR125 up to GSX1400


                                                  Einar

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