Spek pro and rev burner - how to wire?

[Wombatman]

So I just received my Ebay Spec Pro 5inch 11k tach and wanted to verify my pin connections to teh REV Burner

The spec tach as green/purple/black/red/white wires in the harness as shown. Now what goes to +/- S1 and S2   

It appears from the manual

Black ground
Green Tach Input
Red - Ignition Switch
White - Dash Lighting
Purple - Battery Power

Has anyone else got this combo and can confirm please?

Brad

[Wombatman]

Here is what the manual that came with the tach shows

[Cristiano]

Hello.

I don't have your rev counter but I can tell you how to connect it to the rev burner:

BLACK wire connect to the - terminal
GREEN wire connect to the S1 terminal
READ and WHITE wires connect to + terminal

I am not sure about the PURPLE one. I would say + terminal but I don't understant what it is for.