Clutch Switch Effect After Start?

Discussion in 'Motorbike Technical Discussion' started by jeremy.thien, Apr 18, 2006.

  1. jeremy.thien

    jeremy.thien Guest

    I read a few posts about the clutch switch controlling the starter.
    Does anyone know if the clutch switch disables the spark in addition to
    the starter?

    After successfully starting (in neutral), my Kawasaki Vulcan sometimes
    dies if the clutch is released while in gear. My repair manual is en
    route, but I appreciate any advice you can offer.

    Jeremy
     
    jeremy.thien, Apr 18, 2006
    #1
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  2. jeremy.thien

    Don Fearn Guest

    Just because could, he/she/it opin'd thus:
    There's another problem besides the clutch switch. Think about it:
    releasing the clutch while in gear is NORMAL operation of a
    motorcycle.

    Look elsewhere. Operator error, maybe (engaging the clutch a little
    too fast, perhaps)?

    -Don
     
    Don Fearn, Apr 18, 2006
    #2
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  3. jeremy.thien

    FB Guest

    Your problem really isn't the clutch switch.
    The actual problem is with the side stand switch. It's not making good
    contact.

    This business with the side stand switch is actually dangerous to the
    rider. Your engine might suddenly quit while you're riding, and you
    might roll on the throttle thinking you weren't giving the engine
    enough gas. Then the engine might suddenly restart because the
    transmission is in gear. But you'd be giving the engine too much gas.
    You could have an accident.

    The side stand safety interlock requires the sidestand to be up when
    the transmission is in gear and the clutch is engaged.

    I had mysterious problems on my Kawasaki dual sport. The engine would
    quit while I was riding on a bumpy roade. I would pull the clutch in
    and the engine would start because the motorcycle was still moving and
    the clutch had enough drag to turn the engine over.

    If I let the clutch out, the engine would quit because the ignition
    circuit was interrupted by the side stand switch.

    I looked down and saw that the side stand was hanging down just enough
    to allow the
    side stand switch to open.

    I made up a jumper wire to go from one pin to the other on the plug
    where the side stand switch connects to the main wire harness.
     
    FB, Apr 18, 2006
    #3
  4. jeremy.thien

    FB Guest

    I disagree. I can't tell you how many times I rode away from the
    motorcycle hangout
    with my side stand down and flicked the bike into a tight hairpin turn.
    The side stand would always retract with a bang!
    Yes, it's conceivable that the rear tire could be levered off the
    ground.

    But, the way we used to ride over rough back roads with tight twisties,
    we used to be dragging our side stands and center stand and exhaust
    pipes, especially going over asphalt hog backs in the road, and I never
    had my rear tire levered off the pavement while making sparks on the
    pavement.

    One of my sportbike buddies asked me what the heck I was doing back
    there. "It sounded like you were crashing."

    I told him, "I was keeping up with you, wasn't I?"

    Ground clearance is over rated on public roads. And, on the race track,
    I still dragged my Kerker megaphone.
    I remove the safety interlocks from all my mototbikes whenever they
    malfunction. I am smarter than any motorbike, and I can usually
    remember to put the side stand up.

    If not, oh, well...
     
    FB, Apr 19, 2006
    #4
  5. jeremy.thien

    Don Fearn Guest

    Yes. True.

    That's why I disconnected the sidestand switch from the ignition
    circuit (bypassing it at the ignition side) and used it to provide a
    switched voltage to a backup horn mounted under the seat of my R1100S.
    That way, if I leave the sidestand down, I get a nice loud reminder to
    put it back up when I turn on the ignition.

    I can also use it for attracting attention from passers-by whenever I
    want to . . . .

    -Don
     
    Don Fearn, Apr 19, 2006
    #5
  6. jeremy.thien

    jeremy.thien Guest

    I was not, but that is exactly the problem. Thank you for the help!

    Jeremy
     
    jeremy.thien, May 2, 2006
    #6
  7. jeremy.thien

    jeremy.thien Guest

    I was able to clean up the sidestand switch, and now the problem is
    gone! Thanks for the help.

    Jeremy
     
    jeremy.thien, May 2, 2006
    #7
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