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GS Oil Cooler mounting hole dimension?

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    #1

    GS Oil Cooler mounting hole dimension?

    The Lockhart oil cooler is bolted between the front frame downtubes . . . . does anyone know what that frame center to center hole dimension is on the GS 750, 850, 1000 or 1100? (I believe they are all the same). I ask because I won a Fleabay Lockhart 500 oil cooler that was installed on a Yamaha Radian 600.

    TIA
    1979 GS1000E (44 Yrs), 1981 GPz550
    Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100
    Tags: None
    #2
    Originally posted by srsupertrap View Post
    The Lockhart oil cooler is bolted between the front frame downtubes . . . . does anyone know what that frame center to center hole dimension is on the GS 750, 850, 1000 or 1100? (I believe they are all the same). I ask because I won a Fleabay Lockhart 500 oil cooler that was installed on a Yamaha Radian 600.

    TIA
    I dont know for 750(8v),850,1000, but I have a couple 1100's around that if the weather breaks (it is in the mid 50's tonite) I could brave the backyard and see>

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      #3
      Originally posted by posplayr View Post
      I dont know for 750(8v),850,1000, but I have a couple 1100's around that if the weather breaks (it is in the mid 50's tonite) I could brave the backyard and see>
      Oh do tell us of your adventures
      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.

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        #4
        100mm exactly. If your talking about the 8mm holes that sit between the steering head and the exhaust headers
        Last edited by Guest; 01-14-2010, 03:25 AM.

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          #5
          Originally posted by posplayr View Post
          I dont know for 750(8v),850,1000, but I have a couple 1100's around that if the weather breaks (it is in the mid 50's tonite) I could brave the backyard and see>
          Thanks Jim for braving the elements
          1979 GS1000E (44 Yrs), 1981 GPz550
          Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

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            #6
            Originally posted by chef1366 View Post
            Oh do tell us of your adventures
            Sorry fell asleep watching tv; It got windy

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              #7
              I tried to measure the bolt spacing on the frame. The 81GS750E has a set of holes at 4". The GS1100ED was hard to get at because teh collers are mounted in front. The m,ount bolts to teh fraem then the coller mounts to the bracket.
              I think the GS1100 spacing is about 2 1/2". But there is yet another set of holes you can use based on this bracket I made from a 550 cooler bracket. The widest set of holes are for the cooler. The inner set of holes (welded up) were the original 2 1/2" spacing. The other set might have been horn mount holes.

              1st Gen GSXR upgrade for GS1100ED - The GSResources Forums
              http://www.thegsresources.com/_forum/showpost.php?p=1087352&postcount=147
              Place your GS performance, tuning or mods related questions in this forum.


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