john_p_b
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 posted on 2/8/05 at 05:38 PM |
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rev counter pulses
as title really, i have a hyperactive rev counter.
hold the revs constant and depending on how many revs i'm holding the counter waves around. e.g. if i'm holding 2000rpm (roughly)
it'll bounce between 1800 - 2200rpm.
i've got it wired through the coil as it shows roughly in the instructions but i'm sure it shouldn't be this mental?!
thanks once again ppl.
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Snuggs
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| posted on 2/8/05 at 08:12 PM |
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Is it picking up pulses from the electric fan(s).
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john_p_b
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| posted on 2/8/05 at 08:22 PM |
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nope, disconnected the fan and it didn't make any difference 
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Dusty
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| posted on 2/8/05 at 08:59 PM |
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Probably picking up various electrical interference. Had to fit a diode between the coil negative and the rev counter on mine because it worked like a
combined rev counter and throttle pot gauge. Use a 1n4001 diode wired in series in the line. Couple of quid from Maplins.
p.s. don't ask why it works. haven't a clue.
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