Tachometer Pole Setting for Yamaha 70hp?

branman1971

Seaman
Joined
Jun 2, 2007
Messages
59
Anyone know what the correct tachometer pole setting is for a 2003 Yamaha 70hp 2-stroke motor? I was told 6pole position but think i might be getting false tach readings.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Tachometer Pole Setting for Yamaha 70hp?

For that motor your tach should be set at 3P.
 

branman1971

Seaman
Joined
Jun 2, 2007
Messages
59
Re: Tachometer Pole Setting for Yamaha 70hp?

Does it make sense that my tach only shows a 4, 6, 10 and 12 pole setting? No "3" to be found.
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Tachometer Pole Setting for Yamaha 70hp?

What kind of tach is it and model? If those numbers are for poles, then it should be set to 6. If there is a P after the number they are talking about pulses which in your case would be 3P.
 

branman1971

Seaman
Joined
Jun 2, 2007
Messages
59
Re: Tachometer Pole Setting for Yamaha 70hp?

No, they spell out the word "pole"...So try the 6 pole setting? Ok...
 

Dunaruna

Admiral
Joined
May 2, 2003
Messages
6,027
Re: Tachometer Pole Setting for Yamaha 70hp?

The setting for your motor is definitely 6 pole.
 
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