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Rear end noise

Discussion in 'Suzuki 250cc In-line 4's' started by redzook1308, Feb 18, 2016.

  1. redzook1308

    redzook1308 Member Premium Member

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    Ok so i have another question that in kinda stumped with.
    I rode my 1988 suzuki 250 bandit last week and the chain was a bit loose, ran good no noises. I tightend up the chain today and now i have this weird noise like a grinding noise when the clutch is pulled in while riding. I put it into neutral and ithe noise dissappears.
    Any thoughts/ideas?
     
  2. Th3_Huntsman

    Th3_Huntsman Senior Member Premium Member Contributing Member

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    Did you tension the chain too much? Or it could be your clutch thrust bearing
     
  3. Phil

    Phil Senior Member Premium Member Contributing Member

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    Hazard a guess you tightened the chain a little too much. Back it off a tad and see what happens.
     
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  4. redzook1308

    redzook1308 Member Premium Member

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    I think the chain tension is ok but ill check it again. It never made the noise before until i tightened up the chain, thats why im stumped
     
  5. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    Slack the chain off to where it was and see if you still have noise.
     
  6. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    Might be a coincidence, if it makes the noise while stationary and clutch in, then I'd point the finger at the clutch. Like the Th3 Huntsman said, clutch thrust bearing. Try slowly pulling the clutch in, if the noise occurs as soon as there is weight, bearing, if the noise occurs only when clutch is puuled well in, then clutch issue. If it occurs only while moving, your chain and/or sprocket/s may be worn out.
     
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  7. redzook1308

    redzook1308 Member Premium Member

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    Ok thats something to look at. How hard is the clutch thrust bearing to do on these bikes?
     
  8. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    Not sure for that bike, but you take the clutch cover off, undo the bolts holding the pressure plate and the thrust bear is on the other side of the pressure plate. However, I would think it unlikely this bearing would fail suddenly, so might need to check other things, too. Many bikes get you to the thrust bearing in 11 8mm-bolts, so that could be a starting point.
     
  9. redzook1308

    redzook1308 Member Premium Member

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    Did rear sprocket, chain and front sprocket. Check wheel bearings.
    I noticed the clutch shaft ( were the front sprocket goes on) is preety badly worn and the thrust bearing is noisy.
    a
    Does anyone have a clutch shaft for sale. Needed asap?
     
  10. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    The clutch shaft doesn't have the sprocket on it, that is the output shaft. Big job replacing that shaft, too. Good luck.
     
  11. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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  12. redzook1308

    redzook1308 Member Premium Member

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    Awesome that will help heaps. Do you have a step by step diagram to get it out?
     
  13. zixxer

    zixxer Well-Known Member

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    im prettty sure i remember seeing another thread on this site where someone had to replace the bearing on the output shaft.

    also pretty sure they included some pictures in the thread, i think it was a zxr but should give you an idea.
     
  14. redzook1308

    redzook1308 Member Premium Member

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    The only one close to that i can find is were they had to split the cases
     
  15. zixxer

    zixxer Well-Known Member

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    yeah thats probably the one.
     

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