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Old 12-07-2007, 03:44 PM
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paulgw paulgw is offline
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Tach reading inconsistent

My tach, a Faria analog - 4 stroke Yamaha 50, sometimes reads at 2 times actual speed. Idle at 1600-2000 and throttle cracked 3500-4000. Then the next time I look it is a normal RPM. Have 30 hrs on this motor and only noticed this the last 10 hours or so. Most of the time it's right.
Any ideas?
Thanks
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