<VV> Spyder Tach and XR700 ignition

[Bryan Blackwell]

As far as I know, that's a setting on the tach, not the ignition output.  Basically the trigger wire indicates each spark, and the tach converts that into RPM.  Since we are dealing with a stock tach, that shouldn't be the case here.

I don't know enough about how a tach works to diagnose it further, unfortunately, other than to suggest re-checking the connections.

--Bryan

> On Jun 1, 2022, at 6:12 PM, Colin via VirtualVairs <virtualvairs at corvair.org> wrote:
> 
> Could your problem with the tacho reading low be related to the ignition
> being set up for 8 cylinders whereas it is receiving pulses from 6
> cylinders. May be there is a switch on the XR700 unit that switches between
> 4, 6 and 8 cylinder applications?