Hard starting

Discussion in 'Motorbike Technical Discussion' started by MadMax, Jul 7, 2006.

  1. MadMax

    MadMax Guest

    Bought 1983 used honda vt750c. Cleaned and adjusted carbs twice. Second time
    for good luck. Motor started and ran. Still have some issues, re: adjusting
    but problem is now while trying to start, starter makes a chattering noise.
    Like in a car were starter is engaging and being kicked out. Any info would
    be appreciated.
    MadMax, Jul 7, 2006
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  2. Begin by charging the battery.
    Rob Kleinschmidt, Jul 7, 2006
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  3. MadMax

    mike Guest

    Agree, charged battery is a good place to start.
    But my VT500c does the same thing. First symptom was 5 starts ago.
    Now won't start at all. Came on really fast. Just researched it.

    Article claims that the springs in the starter clutch get weak
    and can't hold the thing engaged for starting. Then it bangs up
    the inside of the clutch which makes it slip more...vicious circle...
    I haven't opened mine up yet.
    mike, Jul 7, 2006
  4. MadMax

    Brillo Guest

    The starter is protected by a device that is sometimes called a
    "Bendix" drive. It's an over run clutch. There is a "dog" engagement
    pawl that fails causing this symptom. As previously suggested check the
    battery first for starting current. The voltage can be fine but if the
    cranking current is not up to snuff the symptom is identical. Good
    Brillo, Jul 7, 2006
  5. Mine uses an automotive type starter/solenoid combo.

    I had some engagement problems a while ago.

    Swapped the solenoid and relay and lubed the bushings. (Brushes
    and bushings didn't need replacement).

    This improved things a whole lot, but I still get occasional problems
    where it'll spin without engaging. What I find is that fiddling with
    the ignition switch seems to fix things.

    I'm not sure exactly what's going on with the ignition switch but
    that if the switch contacts aren't seated quite right something gets
    for current due to high resistance.

    It'd be interesting to watch an analog voltmeter while these starting
    problems are occurring. Not sure what mechanical issues might be
    suspects in your particular starter.
    Rob Kleinschmidt, Jul 7, 2006
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