1992 88HP - OMC control tach feed

rjlatherow

Cadet
Joined
Feb 13, 2006
Messages
16
Anyone know what I need to look for in a suitable tach? My current one uses the harness of the control box-<br /><br />Will I be loking for a certain pole setting or do I need something very specific to use the control harness feed?<br /><br />-rj
 

B.autry4711A

Petty Officer 2nd Class
Joined
Feb 24, 2005
Messages
176
Re: 1992 88HP - OMC control tach feed

Hello RJLatherow,<br /><br />I also have a 88 hp Evinrude good motor. Anyway, I just bought one from EBAy and on the back of the Tach gauge it has the studs to attach the 3 tachometer wires from the tach harness comming from the throttle box. Is that how yours is? If so I think our motors have a 6 pulsh setting. Hope this helps you out if not the others on this forum will give you the correct info.
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 1992 88HP - OMC control tach feed

Big Bubba is right, you need a tach to read 6pulse. Most will have a setting wheel in the back you turn with a screw driver. Make sure you get one that will read six pulse.<br /><br />You can check your existing tach. Make sure the harness from the control box is connected up right....black to ground, purple to the "I" on the tach and the gray to the "S" terminal on the tack. Turn the key on and jump the "S" terminal to ground. The tach should deflect all the way clockwise.
 

rjlatherow

Cadet
Joined
Feb 13, 2006
Messages
16
Re: 1992 88HP - OMC control tach feed

my tach is sitting in front of me on the table, reading 8K RPMs. Either my table is really fast, or its busted ;D<br /><br />-rj
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 1992 88HP - OMC control tach feed

Does the table have "Go Fast" paint on it????
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: 1992 88HP - OMC control tach feed

Just because the tach reads anything other than zero in its static state doesn't mean its bad. Most gauges today are of the "float" type which means the needles can rest anywhere on the scale in their static condition.
 
Top