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Thread: FZR chain needing frequent adjustment

  1. #1
    Join Date
    26th August 2012 - 19:32
    Bike
    1989 fzr250
    Location
    Christchurch
    Posts
    218

    FZR chain needing frequent adjustment

    Hey

    The chain on my Fzr keeps needing adjustment, seemingly after ever ride over 20kms or so - mostly tightening up.

    Can't figure out whats doing it, I'm double checking the nuts etc when I do it, and leaving medium slack - but obviously doing something wrong..

    Any ideas on what I should do? Or it is just replace the chain time? - Not sure of its age; I've done about 3000 kms on it though. I try to keep it well oiled too and can't see/feel any kinks

    Thanks

    Also, best place to get clutch cables/steering head bearings and new chain (if needed)?

  2. #2
    Join Date
    17th February 2005 - 11:36
    Bike
    Bikes!
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    Christchurch
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    9,649
    Sounds like it is rooted.

    Get the rear wheel off the ground and turn it, look at the teeth and make sure they're not moving in an out indicating an oval sprocket or something else tricky that might be missing with your mind.

  3. #3
    Join Date
    3rd March 2008 - 11:55
    Bike
    ST2 NZ250
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    The evil flatlands
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    2,325
    If the chain is needing adjusting that often (assuming you are finding the tightest point to check it at each time), then it's on it's way out. Easiest checks are to grab it a few links apart and see if there is any movement in and out, you can measure it along 10 links and see if it's got longer, and you can grab it at the back of the rear sprocket and see if it pulls away from the sprocket.

    Quote Originally Posted by McFatty1000 View Post
    Also, best place to get clutch cables/steering head bearings and new chain (if needed)?
    Start with the Yamaha dealer, I've found genuine parts to be considerably less obscene from Yamaha than for most makes of bike. Failing that from the interwebs, I've bought stuff from www.partzilla.com with no dramas, assuming of course they list the part you want.
    Riding cheap crappy old bikes badly since 1987

    Tagorama maps: Transalpers map first 100 tags..................Map of tags 101-200......................Latest map, tag # 201-->

  4. #4
    Join Date
    26th August 2012 - 19:32
    Bike
    1989 fzr250
    Location
    Christchurch
    Posts
    218
    Thanks for the replies

    Sprocket itself looks ok so I don't think its that at this point, I'll replace the chain when I can just to be sure, I'll assume its generally a good idea to do the sprocket too just to round off all the bases?

    Cheers

  5. #5
    Join Date
    5th April 2004 - 20:04
    Bike
    Exxon Valdez
    Location
    wellington
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    13,381
    First, riddle us this. When you adjust the chain, do you have to leave it a bit slacker than advised and let it come to the right tension when you do up the axle nut?

    I ask because if so, you're doing it wrong...and probably not doing the nut up tight enough.

    Adjust your chain so that the adjusters are always pulling the chain tight, (with tension on them) so the chain has the right amount of free play. Once that's done, bunch up a rag and place it between the sprocket an chain at the bottom and roll the wheel so it gets jammed in between the two.

    Do up the nut. Roll the wheel the other way to get the rag out and presto, chain stays at the right tension.

    Seen lots of people try and 'allow' for it getting tight when they do up the axle. I like to laugh for a bit before I give the advice.

  6. #6
    Join Date
    25th March 2004 - 17:22
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    RZ496/Street 765RS/GasGas/ etc etc
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    Front sprocket esp gets worn. Sometimes a casual inspection they all have teeth & look fine. . . . - Until you take them off & see how cut into they are when you hold them in your hands & realise what you need to be looking for.
    Don't you look at my accountant.
    He's the only one I've got.

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