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speedometer swap from a yamaha

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    speedometer swap from a yamaha

    I have a 160mph speedo and tach from a yamaha. I didnt look to see which one it was. It was an older inline 4 cylinder. I was wondering if it would work on a gs650?

    #2
    Originally posted by scrapper View Post
    I have a 160mph speedo and tach from a yamaha. I didnt look to see which one it was. It was an older inline 4 cylinder. I was wondering if it would work on a gs650?
    As long as the cable fits why not?
    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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      #3
      I didnt know if yamaha had different ratio than a suzuki. I know it will fit and can be wired up to work. I was worried about speed being off.

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        #4
        All older metric bikes have the same speedo ratio of 2240:60 or whatever it is. You'll be good.

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          #5
          Originally posted by scrapper View Post
          I didnt know if yamaha had different ratio than a suzuki. I know it will fit and can be wired up to work. I was worried about speed being off.
          What determined the gear ratio is on the wheel. They differed on the size of the tire.
          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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            #6
            did the same swap some years ago, never got a speeding ticket...
            I think you will be ok...

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              #7
              Thanks I will give it a try. Its got a 4into1 header going to grab it to. Maybe the carbs.

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