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Vanilla 1.1.5a is a product of Lussumo. More Information: Documentation, Community Support.

    I am using a TIM 6 on a 2 cyl engine. It has developed an odd problem. After a few seconds of running it will quit firing. If I disconnect the batt and turn it on it will fire OK for a few seconds and quit again. Unhooking the batt will restart the spark again but does not last! Has anyone had this problem? What could cause this odd malfunction?
    • CommentAuthordavid
    • CommentTimeApr 15th 2010
    If it has a hall sensor a voltage spike may cause it to lock up (SCR latch up). I recommend a separate heavy chassis ground wire. I also recommend a small ceramic capacitor across the power leads right on the hall sensor chip. Hope it helps.
    David, thanks for your advice. I already had a capacitor across the power leads but your comment about the 'spikes' made me think. I put an RF inductor from an old radio in series with the the 6 volt lead to the Hall pin #1 and the engine is running Ok now. Thanks again. Craig
    • CommentAuthordavid
    • CommentTimeApr 16th 2010
    A 100 ohm resistor will also work. The ignition circuit has very fast voltage rise times and the hall sensors latch if the supply exceeds the rating even for a nanosecond. If the spike gets bigger the hall sensor fails. Glad you got it working.