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Big Time Tranny Trouble?

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    #1

    Big Time Tranny Trouble?

    Well, the dependable old GS left me stranded for the first time this afternoon. A beautiful day for a ride and she was running just fine. I stopped in town due do few errands. When I pulled out onto the highway to head home I attempted to shift from 1st to 2nd I heard a clunk...and started to coast...no gears..... 8O . I could shift through all gears & neutral but got no connection to the drive shaft, (just some ominous sounding rattling/vibration coming from the tranny cover on the right side when I reved the engine in any gear)...Any thoughts on where to start and what I am likely to find when I get the beast home and tear into it.
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    #2
    Gary,
    The most likely cause is stripped out splines in the rear differential. It's fairly common I hear, and it's something that could go out on you suddenly like that. You'll need to remove the rear wheel and see if the driving gear turns. I'm sure you could see the damage too.

    Great quote by the way...

    Ace.

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      #3
      Originally posted by flyingace
      Gary,
      The most likely cause is stripped out splines in the rear differential. It's fairly common I hear, and it's something that could go out on you suddenly like that. You'll need to remove the rear wheel and see if the driving gear turns. I'm sure you could see the damage too.

      Great quote by the way...

      Ace.
      That's the first thing I will check when I get it home, but the noise comming from the tranny makes me think there's some other problem....

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        #4
        If the shaft isn't turning, just trace it upstream. Next stop is the bevel gear between the tranny output shaft and the final drive shaft.

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          #5
          Lost the clutch hub maybe?

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            #6
            99% odds are you have stripped the splines in the drive adapter in the rear wheel.
            like this one.

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              #7
              My buddies chain drive GS 750ES had similar issues, though that spline thing could be it.

              His turned out to be a $2.00 spring attached to the inner case webbing and the shift pawl mechanism.

              It could of been accessed from the oil pan, but he ended up splitting the whole engine to discover this.

              If the shaft isn't it, this maybe worth a look.
              GS\'s since 1982: 55OMZ, 550ES, 750ET, (2) 1100ET\'s, 1100S, 1150ES. Current ride is an 83 Katana. Wifes bike is an 84 GS 1150ES

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                #8
                Yes the splines are the first thing to check. Push the rubber drive shaft boot back & hold the rear break on. Run the motor in gear If the drive shaft turns the wheel adapter is bad it's bad. If the drive shaft doesn't turn The next thing to check would be the beveled gears

                Comment

                  #9
                  Originally posted by focus frenzy
                  99% odds are you have stripped the splines in the drive adapter in the rear wheel.
                  I think you are right I have been out of town so I didn't have a chance to look at it until today. Pulled back the drive shaft boot and put a wrench on one of the bolts to keep it from turning and I was still able to spin the rear wheel. Kind of surprized because I had the real wheel off about 5K ago to replace the tire and the gear didn't look like it had too much wear. So I cleaned & greased it and threw it back together. Really glad it isn't more serious... (and that it didn't happen when I was touring around Vancouver Island a couple of weeks ago)

                  Is the placement gear readily availble through Suzuki or Bike Bandidt

                  Any tricks to removing /replacing it I should be aware of

                  Comment

                    #10
                    If you have a wrecking yard near look for one from 79-80 is the best (black in color). But All of the adapters are the same so any 850/1000/1100 will fit

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