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Deceleration noise - same with shifting.

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    #1

    Deceleration noise - same with shifting.

    And the problems keep on coming...

    Alright, I've spent the past couple hours searching the site for a clue but I'm lost. Cam chain? Drive shaft? Transmission? Clutch basket? could be anything I guess. So I've decided to post this one.

    There's a noise I just can't figure out. Here's the symptoms: When shifting either up or down the shifter lever makes it's normal klick sound but then there is a rather pronounced additional set of clicks, like two or three in succession that happen pretty quickly. so it is like shift, click click click, shift, click,click,click. This same sound happens at any RPM over 2.5k or so even when not shifting. All I have to do is decelerate. As soon as I throttle down the noise starts. I thought it might have something to do with the suspension or front end but coasting and hitting the front brake hard doesn't do it. Sounds like it is in the area of the shifter but it doen's seem like anything is loose, at least on the outside. And on the stand I can't get it to make the noise going through the gears. Seems to happen only when the engine is running.
    Anyone have any ideas, anything easy I can check. I fear a trip to the local Suzuki dealer and some serious $s - which, of course - defeats the purpose.
    Thanks for any suggestions.
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    #2
    Is it just your chain smacking the inside of the chain gaurd?

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      #3
      I can easily check that. It just started happening yesterday and is getting more pronounced with ride time. I had the chain replaced about 800 miles ago. Seems to make the same noise when gliding with the clutch in and shifting up or down. Curious though, it does not happen when sitting idle and going through the gears. No performance issues yet. But I have a feeling I'm in for something major.

      Comment

        #4
        Uhhh, I feel pretty stupid now. I checked the chain today and it is flopping all over the place. New chain, installed at the shop only has 600 miles on it. Hard to believe it already stretched THAT much. I'll give it a shot tonight.

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          #5
          chain, installed at the shop only has 600 miles on it. Hard to believe it already stretched THAT much.
          The first few miles are when they stretch the most (until they are about to die, that is...) as everything gets seated and beds in. Once it is settled you shouldn't need to adjust it much. I went 17,000km on my ZX-9 chain without touching it (beyond cleaning it with WD-40) and it barely needed an adjustment at the end of that run.


          Mark

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            #6
            The chain had about a 6" deflection after 600 miles. Wow - that's some stretch. I got about 1" of deflection now after about 3 full turns on both sides of the adjustment screws. Cost me $12 for a 24mm wrench and $0.40 for cotter pins. Good as new. Shifts great and no noise.
            I feel pretty stupid now. But I'll know for next time. Thanks.

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              #7
              The chain had about a 6" deflection after 600 miles. Wow - that's some stretch. I got about 1" of deflection now after about 3 full turns on both sides of the adjustment screws.
              Was that 6" of sag or 6" total movement from full droop to full up? And is your 1" measurement sag or total movement? If it is sag, that is on the tight side and tight is not good. I run mine with at least 3" total movement and have never had a problem. Loose chains can be a bit noisier, but they are OK overall. Tight chains will eat sprockets and cause premature wear on your chain set. Remember to spin the rear wheel and look for the tightest spot on the chain to adjust at. It will have tighter and looser spots as you go around. Also, remember to check the slack with someone sitting on the bike as the chain gets tightest when the countershaft sprocket, swingarm pivot and rear sprocket all line up. It will be looser if you set it with the bike on the centerstand, then get tighter when you sit on it to ride.

              Three turns on the adjusters is a LOT! 8O I have never turned them more than 1/2 turn at once and that was on a pretty loose chain....


              Mark

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                #8
                Shoot, I really tightened it down. the clymer manual didn't say anything about it getting tighter with it off the center stand. I'll have to check it tomorrow. the deflection was about 6" in both directions - ok maybe 4-5 for a total of 8 or nine inches from top to bottom. It was really pretty loose. banging into the frame and chain guard.

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