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Discussion Starter #1
How many pulses per rpm does the factory ignion on a yamaha raptor make? I was wondering because i want to put a tach on my raptor.

Nitrous Guy
Where does your signal wire go to for your tach? I have put tachs on vehicles no problem. The signal wire goes to the - on the coil. Is it the same for the raptor?

Thanks for your time
josh
 

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Discussion Starter #3
I was thinking that it has one spark for one revolution since the spark it triggerd by the flywheel. I think that it sparks on the exhaust stroke, as well on the compression stroke. I think that i would need a tach that reads 2 pulses (sparks) for it to read 1 rpm. I am not sure that is why i was asking.
 
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