Is my tach wrong

Les Young

Seaman
Joined
Jul 7, 2009
Messages
66
I bought a 255 Sprint from a buddy. It used to have a 48hp rude. It now has a rebuilt 1992 70 hp Johnson.Tach said 7100 rpm, but I know it's not turning that much. What position should the pulse screw be set for this 3 cylinder engine(it has 5 different positions)??? The prop that's on it is a 13X17. It shows almost 6000 wot trimmed all the way down also. thanks
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: Is my tach wrong

The dial should be set to 6P.
 

Les Young

Seaman
Joined
Jul 7, 2009
Messages
66
Re: Is my tach wrong

Ok, thanks Ezeke. Ill try it & I also really appreciate it. I suspect it was set for the 48 hp(2 cylinder) & they hooked the wires back up & never tried it to see if it was right.Thanks buddy.
 
Top