how to hook up a tach

[bighoss24]

on a 1985 35hp mercury how do you hook a tack up the controll box has a plug but i dont have the plug that goes in it so how can i hook it up with out haveing that plug that goes in it

 

[Barnacle_Bill]

Re: how to hook up a tach

You can get that harness here. http://www.iboats.com/Boat-Parts-Accessories/dm/keywords.tach%20harness

 

[bighoss24]

Re: how to hook up a tach

is there another to do it with out haveing to order someing or just say spend money

 

[wired247]

Re: how to hook up a tach

You should have two yellow wires going to your rectifier. Hook your tachs signal lead to one of your leads that one of the yellow leads is attached to.

 

[bighoss24]

Re: how to hook up a tach

if i rember correctly i have a yellow and a gray wire on the rectifier

 

[wired247]

Re: how to hook up a tach

The yellow wire will be fine. You have to set your tach to match your stator. The tach just shows how many pulses your stator puts out. Theres a switch on the back you can adjust for how many pulses your stator puts out per revolution.

 

[bighoss24]

Re: how to hook up a tach

how do i find out how many pluse it puts out it is a 1985 35hp mercury

 

[wired247]

Re: how to hook up a tach

4P for the 35 merc.

 

[bighoss24]

Re: how to hook up a tach

ok so what is a cheap tach that will work i have been looking on ebay cause the one i got dont work i got it off a junk boat that some one had messed with the wiring i think it is broke cause when i start the motor up it will go to 3000 rpm and stay i have checked my tach wire on the rectifier and the rectifer is good

 

[bighoss24]

Re: how to hook up a tach

so if i get a tach that has 1234 on the back witch number should i put it on

 

[wired247]

Re: how to hook up a tach

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