How to pick up tach signal from ignition coil

[heffa]

I´m installing a Microsquirt ECU on my Turbo ETEC, but I´m having trouble identifying which of the cables out of the ignition coil to hook on to for picking up a tach signal. The MS manual says connect to the low voltage terminal, but which is it?
Any help greatly appreciated !!

 

[summit800]

what sled? on the older sleds it was the yellow

 

[sxr1000]

my digitron hooks to the lighting for the tach.

 

[heffa]

It´s a 2013 Summit XM 800 ETEC X.

 

[Wheel House Motorsports]

99% sure its the center wire, but I would need to confirm when i get back to the shop.

 

[heffa]

Thank you for the info, Wheelhouse Motorsports