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+--- Thread: [ Question ] Old style rotor rpm (/thread-99.html)
Old style rotor rpm - Tony stewart - 04-17-2026
Hi does anyone one have a wiring diagram for the old style westack rotor rpm tach.thanks. or knows what wires go where on the back 5pins numbered 4,5,6,7,8.
RE: Old style rotor rpm - Lyle Swallows - 04-17-2026
here you go, i also have the one for the new digital westach styled gauge.
![[Image: IMG-1809.jpg]](https://i.ibb.co/YCLNtnn/IMG-1809.jpg)
RE: Old style rotor rpm - Tim Morris - 04-17-2026
(3 hours ago)Lyle Swallows Wrote: here you go, i also have the one for the new digital westach styled gauge.
Image doesn't open Lyle.
RE: Old style rotor rpm - Tony stewart - 04-17-2026
Thankyou Lyle , the tach I have is not a dual tacho , but the single one . So do I just connect the same as the rotor pin numbers in the diagram. Or is the single tacho wired different.???