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Thread: How tight should the clutch springs be?

  1. #1
    Join Date
    Mar 2005
    Location
    Des Moines, Ia
    Posts
    198

    How tight should the clutch springs be?

    I was putting in new plates and fibers. My manual just says to tighten them evenly. Do they bottom out on the basket? then is there a foot pound rating? My book just says in the first table that a 10mm bolt should be 26 foot pounds. Well I had my torq wrench set and ended up braking a bolt before I hit 26lbs??? It may have been stressed but I still don't know how tight they should be?
    02 408ex ,11:1 weisco, WB CDI, full Stainless HMF, Ported head, Web cam, Hardened Steel rockers, Titanium keepers,KW valve springs,G Force axle, 450r carb,Dual Row carrier, GT Thunder springs on 450r shocks

  2. #2
    Join Date
    Jan 2006
    Location
    NE, IL. No, not Chicago.
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    4,473
    the clutch spring bolts should just be tightened until they are snug. 26 ft/lbs is a LOT for those little bolts. something is wrong there.
    ~Mike~
    2000 Honda 416EX

  3. #3
    Join Date
    Sep 2008
    Location
    Maryville, TN
    Posts
    85
    I just looked in the shop manual and they do not list a torque spec. I agree with above, 26 lb-ft seems like a lot. I would clean them real good, use some blue loctite, and use about 10 N-m (about 7.4 lb-ft) That is the spec for the M6 bolts on my bike clutch.

  4. #4
    Join Date
    Jan 2009
    Location
    kentucky
    Posts
    293
    i agree with richards, somewhere around 8 ft. lbs. should be fine. 26 is way to much.

  5. #5
    Join Date
    Nov 2003
    Location
    Chi town burbs, IL
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    4,256
    Originally posted by Pipeless416
    the clutch spring bolts should just be tightened until they are snug. 26 ft/lbs is a LOT for those little bolts. something is wrong there.
    X2, There is no torque spec for those bolts. Tighten them until they are snug with a small 1/4" drive ratchet to limit the torque. Go until they bottom out, then just a tiny bit more. The spring pressure will prevent them from loosening on their own, so don't worry about that.
    00' 400EX - GT Thunder 450 stroker, custom JE 12.5:1 piston,
    +7mm stroked crank, HD stroker rod, HRC cam, GTT full race porting, +1mm intake valves, FCR 39 carb, CRF timing chain, Denso IXG27 iridium plug, full Hinson 8 plate clutch, Desert Toyz Supercooler w/ SPAL fan, UM airbox w/ UNI, CT Hi-Output exhaust, Roll LOBO II F/R, LT PEP 8 click ZPS piggyback fronts, PEP ZPS rear, YFZ brakes/450R master, CCP stabilizer, Hiper Tech beadlocks, Durablue X-33, TAG, Quadtech, ASV, AC, IMS, RAD, Works Connection, Galfer..

    05' Kawasaki KLX 110 - Fast 50's springs F/R, HRC cradle, Rox risers, FLY fatbars, NGK CR6HIX iridium plug, Twin Air filter

  6. #6
    Join Date
    Mar 2005
    Location
    Des Moines, Ia
    Posts
    198
    Thanks for all of the help. I just ordered new bolts. Hopefully they wont break on me.
    02 408ex ,11:1 weisco, WB CDI, full Stainless HMF, Ported head, Web cam, Hardened Steel rockers, Titanium keepers,KW valve springs,G Force axle, 450r carb,Dual Row carrier, GT Thunder springs on 450r shocks

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