Uneven chain slack.. HELP!

Discussion in 'Mechanics Garage' started by massaki, Jan 24, 2013.

  1. massaki

    massaki New Member

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    Okay so chain was streched. Lubed and adjusted only to pull out of drive way to find slack right back to sag. Odd fact that I found was that where I ajusted it ( im assuming ) the chain seemed good. But when I rolled it a bit it seemed as if I had not adjusted anything. Again assuming chain was the issue.. Which it was in part. I replaced the chain with a brand new one. New chain on and adjusted to a nice snug fit I spun the tire only to find that the spot I adjusted to that sweet free play adjustment it should have was good but the rest of the chain had a sag. =/ any advise would be very helpful. Point me in a direction so I know where or what to begin looking for/at. Have a buddy that Has a shop in the back yard but im the only single sided swing are that goes there so im the odd ball of the group but at the.same time envy comes into play when I adjust my chain without the need of a pit bull :) anyhow any suggestions or thoughts would be appreaciated.
     


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  2. CRFan1

    CRFan1 New Member

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    That is probably an indication that the sprockets are worn unevenly. Generally, when you replace the chain, you want to replace both sprockets so they "wear in" together. It's never good to put a new chain on old sprockets or vice versa.
     


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  3. Scubalong

    Scubalong Official Greeter?

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    +1 Time for you to replace the sprocket and chain.
    If you already adjust to the max on the indicator I assume.
     


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  4. 34468 Randy

    34468 Randy Secret Insider

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    In addition to above, you will have some areas of the chain which are tighter than the rest. When checking the tension, you should check it is a few places and be within the noted tolerances at each spot. Typically there should be somewhere between 3/4 and 1 1/4 inch slack. Depending on what book you read. This may sound like a stupid question but are you sure that you tightened the tension clamp bolt enough so that it did not slip? Don't over do this. Tighten to specs using a torque wrench.

    I have changed my chain and sprockets I think it is 4 or 5 times now. I have lost track. But each time I changed the chain, I put new sprockets front and back. A worn sprocket is likely to cause your nice new chain to wear faster and in the end, you spend more.
     


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  5. massaki

    massaki New Member

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    Well I appreciate the replies. Im fairly knew to working on bikes so please excuse my rookie questions. Ive heard some say.its a must when changing chain.. And others.say.you can get away with it. I will take the advise and sprokets it is. Mistakes are how leasons are learned. againthanks for the speedy helpful feed back. Greatly appreciated.
     


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  6. Scubalong

    Scubalong Official Greeter?

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    If you need help with instruction (how too)we can help.......
     


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  7. 34468 Randy

    34468 Randy Secret Insider

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    Your stats on your avatar does not say what bike you have. When you have a moment consider changing that. What year is your bike and do you have the owner's manual? Never loose these little gems of information. There are service manuals downloaded here on this site somewhere for just about every gen except maybe the 7th gen in PDF format. Take a look around see if you can find the manual for your generations. If not, pipe up and someone may help you out.
     


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  8. massaki

    massaki New Member

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    I will definitly be taking you guys up on that offer when the time comes.
     


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  9. 34468 Randy

    34468 Randy Secret Insider

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    Any time. The Hokey Pokey is self explanatory though
     


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  10. squirrelman

    squirrelman Member

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    Worn chains always have a series of loose and tight spots, it seems.:tongue: Always find the tightest area of chain travel, and set the slack there. Usually better if it's looser than too tight, which can damage transmission output bearings.
     


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  11. 91talon

    91talon New Member

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