Clutch stopped working during oil change?

Discussion in 'Motorbike Technical Discussion' started by Dave Walker, Apr 5, 2004.

  1. Dave Walker

    Dave Walker Guest

    do you really want Limited slip fluid in a bike though?
    Normally, LSD fluid will contain modifiers that are wiped off the final
    drive clutches when differential action occurs (in a car...) yet lubricate
    the clutches when both wheels are spinning at the same time.

    maybe a moot (sp) point tho, as you said the oil sump is completely seperate
    from the tranny one?
     
    Dave Walker, Apr 5, 2004
    #1
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  2. Dave Walker

    Bill Guest

    Is this the first time started this season after sitting all winter?

    --
    Bill52

    2003 Vulcan Classic 1500
    VROC # 10779
    Winnipeg, Canada
     
    Bill, Apr 5, 2004
    #2
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  3. Just to clarify - have you been using the "limited slip" automotive Castrol
    oil in the primary? If so, I think that might be where your problem lies;
    the anti-friction additives in that oil will fry your clutch. But if the
    engine oil also lubricates the clutch then you're okay because you said you
    use Castrol bike oil. In that case, I would check the clutch by taking the
    bike off the centrestand and hopping on to put the bike into first. It's
    possible the clutch plates are sticking and need a little jolt to break
    free...?
     
    Mike \Gummiente\ Palmer, Apr 5, 2004
    #3
  4. Dave Walker

    Dave Walker Guest

    seems to say it worked perfectly before the change, but ya, maybe you're
    right ...
     
    Dave Walker, Apr 5, 2004
    #4
  5. I think the clutch is part of the engine and the two gear boxes are on
    either end of the drive shaft.

    Steve
     
    Stephen Rivett, Apr 5, 2004
    #5
  6. Dave Walker

    James Clark Guest

    If it uses a rack and pinion release mechanism like my
    GS1100EX, it sounds like the rack has slipped out of
    engagement with the pinion gear.
     
    James Clark, Apr 5, 2004
    #6
  7. Not on an aircooled bike it doesn't, unless you're counting condensation
    from not using it frequently enough.
     
    The Older Gentleman, Apr 5, 2004
    #7
  8. Dave Walker

    bg1 Guest

    What does your owners manual recommend?
     
    bg1, Apr 5, 2004
    #8
  9. Dave Walker

    Ian Dalton Guest

    1980 GS850G
    Just changed all the fluids and then did the gaskests for the rocker cover
    and the breather to solve and oil leak.
    When I drained the primary drive unit, the oil was milky. That usually means
    oil and water. Drained the final drive and it was a litle dark but great.
    Changed the engine oil and filter.
    I started up the bike on the centre stand just to make sure everything was
    hunky dory.
    Pulled in the clutch, dropped it into 1st so the new gear oil would
    circulate and let the clutch go.
    Rear wheel spins fine.
    Pulled in the clutch but it doesn't feel right.
    Applied the rear brake. Bike stalled.
    Re-adjusted clutch (I had the cable off to replace the gaskets) and ...
    Same thing.
    Even tightened as far as she'll go and the clutch doesn't disengage.
    I used Castrol 10-40 bike oil.
    I used Castrol 80 differential lube in the 2 gear boxes. It is a limited
    slip formula.

    What's happening?
    The clutch worked perfectly on disassembly.
     
    Ian Dalton, Apr 5, 2004
    #9
  10. Dave Walker

    Paul Guest

    Just a thought, but are you sure the clutch actuator behind the side cover
    is properly installed. There should be a little lever connected to clutch
    cable, that moves another lever or an escentric inside the cover, that
    pushed on a plunger to disengage the clutch. I've assembled these things
    wrong before, sometimes there is a slot you have to make sure the actuator
    fits into while putting the sidecover on. Did the cover seat completely
    without tightening any bolts, or did you have to crank on the bolts to make
    it seal? If the latter, I bet you have an assembly error.

    Old shadetree mechanic.
     
    Paul, Apr 5, 2004
    #10
  11. Dave Walker

    Dwarf8 Guest

    Never had the D(*^% thing apart...
    That's why I'm so perplexed.
    The only thing I did was back off the adjuster for the cable to get it out
    of the way to do the gasket change.
    I replaced the oil and the gear oil, now the clutch doesn't function.
    Thanks for the thought, though.
    Ian
    80 GS850G
    82 CB450T
    8~ SR250s
     
    Dwarf8, Apr 6, 2004
    #11
  12. Dave Walker

    Dwarf8 Guest

    Suzuki gear oil. :)
    Go figure.....

     
    Dwarf8, Apr 6, 2004
    #12
  13. Dave Walker

    Pierre Guest

    Broken clutch cable, or maybe disconnected or jammed at one end?

    Pierre
     
    Pierre, Apr 6, 2004
    #13
  14. Dave Walker

    Dwarf8 Guest

    Nope.
    Clutch mechanism moves through full range of motion.
    Just doesn't do anything!! :(
     
    Dwarf8, Apr 6, 2004
    #14
  15. Dave Walker

    Pierre Guest

    You are no doubt already linked to this but if not, it has a bunch of GS
    clutch problems etc which might provided a clue.

    http://www.thegsresources.com/q_a/gs_qa_general.htm


     
    Pierre, Apr 6, 2004
    #15
  16. Dave Walker

    Dwarf8 Guest

    I have been haunting the GSResources since I got the bike. I is indeed a
    superb site.
    Thanks for the link, Pierre.
     
    Dwarf8, Apr 6, 2004
    #16
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