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Clutch Parts Question

Discussion in 'XJ Technical Chat' started by BillB, Mar 17, 2011.

  1. BillB

    BillB Active Member

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    Anyone have experience with the Barnett Clutch or EBC clutch springs?

    Which one is the superior spring?

    Edit: I miss wrote this. It should have been Barnett Clutch SPRINGS or EBC clutch springs.
     
  2. stereomind

    stereomind Active Member

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    I've used EBC on 3 of my bikes with zero issues. Not sure on Barnett though.
     
  3. RickCoMatic

    RickCoMatic Well-Known Member

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    Those in the High Performance and Racing Community would steer you to Barnett.

    But, I think Barnett makes Clutches using different materials for Performance applications. Kevlar and metallics and such.

    I know you can order Heavy Duty Hardware.

    Be true to yourself.
    Put the Bike together for the way you'll ride it.
    If you're a guy who goes to the end of the Tach and Engine Brakes before taking the off-ramp, ... stick a Performance Clutch in it.
     
  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    I've done quite a bit of testing of clutch components, both OEM and various aftermarket manufacturers, and can tell you this:

    The Barnett springs will be a tad stronger, and have a more "linear" feel than the OEM but not quite as stiff as the "stiffer" aftermarket (K & L) springs.

    I would recommend Barnett springs with a Barnett clutch; but I would use them ONLY with a Barnett clutch.

    Personally I prefer OEM Yamaha springs for overall performance without tiring your hand out.

    I found the "15% stiffer" K & L springs unnecessarily stiff.

    I haven't tried the EBC springs or clutch components.

    I am currently running a full Barnett clutch in one of my 550 Secas; and a rebuilt clutch consisting of new OEM springs, K & L friction plates, and the original plain plates, (reconditioned with Scotchbrite) in the other 550 Seca. The rebuilt clutch performs flawlessly; I adjusted it once about 200 miles after installed and haven't touched it since; that was over 3000 miles ago.

    I only have about 700 miles on the Barnett so far; it too works very well (as expected.) It does have a slightly heavier pull than stock.
     
  5. RickCoMatic

    RickCoMatic Well-Known Member

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    If you aren't going to Track Day or run the Bike in quarter-mile duels, ... don't bother with Heavy Duty Springs.

    I thought having a "Competition Clutch" in my 900 was going to be real cool and let me get to the next traffic light before everybody else.
    Nope.
    Bad choice.
    I was using the Bike as a Daily Rider.
    The "Heavy" Clutch tool its toll on my left hand.

    I found myself shifting into Neutral to give my hand a break from all that squeezing.
     
  6. BillB

    BillB Active Member

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    Racing is not my thing.
    Im riding mine mostly in town. Lots of stop and go in Tulsa.
     
  7. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    I recommend you do a basic rebuild; as long as your plain plates are fine all you'll need would be friction plates, new springs and a gasket. Stick to OEM springs, run whosever friction plates you want, and you'll be happy.
     
  8. BillB

    BillB Active Member

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    Any special tools required?

    I just bought a new torque wrench for this job.
     
  9. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    No special tools unless you need to remove the hub (which you shouldn't have to.)
     
  10. SeeCoryRun

    SeeCoryRun New Member

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    whats the torque spec if anyone knows it off the bat?
     
  11. BillB

    BillB Active Member

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  12. SeeCoryRun

    SeeCoryRun New Member

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    thanks a million Bill!
     
  13. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    WHOA! Which torque spec? The clutch hub? It's like 52 ft/lb. And use a new tab washer.

    The bolts for the SPRINGS are either 7.2 ft/lb(650/750, etc.) or 5.8 ft/lb(550/600.)

    Case bolts are always 7.2 ft/lb.
     
  14. SeeCoryRun

    SeeCoryRun New Member

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    i was looking for the spring bolt spec :)

    but deff thanks for the extra info!
     
  15. RickCoMatic

    RickCoMatic Well-Known Member

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    There's no such thing as a dumb question.

    But, there are questions for which answers are readily available all in one neat volume.

    The Factory WorkShop Manual.
    Or,
    The Haynes Manual
    Or,
    A Clymer Workshop Manual.
    Or, God forbid ... you should decide to get each and everyone of the Yamaha Manuals illegally pirated onto a Multi-Disc Set ...

    At least you could look something up.

    Put Workshop Manual on your list of things you should have right away.
     

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