Boomyal
Supreme Mariner
- Joined
- Aug 16, 2003
- Messages
- 12,072
I posted this over in EEEEEElectronics but thought it might not get seen.<br /><br /> I'm going to be installing an MSD capacitive discharge ignition system in my boat. Speculation is that my Teleflex tach will not work with the ignition. MSD has a seperate tach lead that puts out a 12 volt square wave signal with a 20% duty cycle. My current Teleflex tach is a apparently a voltage trigger tach as it hooks to the negative terminal of my coil.<br /><br />Do you know of a marine tach (approx std 3 inch) that will work with the ignition. I might as well by a new tach as opposed to buying a 'tach adaptor'. <br /><br />The Teleflex is a replacement for my OEM tach that crapped out a few years ago. I never liked it anyway. It alwas sits at about 1200 rpm with the key off.<br />