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Old 02-17-2011, 02:12 PM   #6
alantf
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Location: Tenerife (Spain)
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Re: another tach question

Quote:
Originally Posted by mrlmd1
I don't remember if the GZ is a dual fire ignition or not,
It's been mentioned before, that it is.

Wouldn't you need some way of switching between single cylinder/twin cylinder, so that it doesn't show half the true reading (or is that double the true reading?)? :??: I remember fitting one to a car, many years ago, & you had to switch it to the setting for the number of cylinders your car had.
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