1985 Mercury 90 HP Inline 6 - Tach pole setting

[ZigZaggin]

Greetings. 1985 Mercury 90 HP inline 6 (the tower of power). Adding a tach. I'm pretty sure the pole setting is "12" but wanted to double check with the forum. Thanks in advance for your time and knowledge!

-zig

 

[Laddies]

Re: 1985 Mercury 90 HP Inline 6 - Tach pole setting

12 pole, 6 pulse

 

[ZigZaggin]

Re: 1985 Mercury 90 HP Inline 6 - Tach pole setting

Faria Tach - I don't see a setting for pulse on the back. The number 5 on the only adjustable dial is the setting for 12 poles. Hope it works!

 

[j_martin]

Re: 1985 Mercury 90 HP Inline 6 - Tach pole setting

It'll either be right on, or read half speed. Should be easy to discern. That engine won't idle at 400 rpm

 

[ZigZaggin]

Re: 1985 Mercury 90 HP Inline 6 - Tach pole setting

setting number 5 worked fine. thanks for the info.