suzukidave
Petty Officer 1st Class
- Joined
- Jul 1, 2000
- Messages
- 387
I have tachometer confusion. Are all tachs not the same? Is there a way to calibrate a tach?<br /><br />My tach died last year and I replaced it this year with the exact same model (teleflex amiga universal). The new tach says my 55 suzuki is doing about 400-500 rpm more than the old one did at the same speedo reading. The boat will rev w-o-t to 5900 rpm, when it used to top out at 5400. W-O-T for the motor is supposed to be 5500 rpm. I bought a tach in the first place because I was convinced I was underpropped (I've got an 11x11inch prop on a 16 foot deep v and it just jumps onto plane). Now I'm wondering if I was right the first time.<br />Any suggestion on how can I sort out which tach to trust?<br />thanks<br />suzukijoe