tach feed

[redcajun18]

i have a 1988 johnson 150 gt 150stlaca
i have no tach! it runs off of the regulator, the grey wire and the regulator works gr8 as far as charging the batteries but i seemingly have no output to the tach

anybody know how much voltage is supposed to be coming out of the regulator for the tach? i am trying to find out if i need a tach or a regulator! anybody have a gently used watercooled regulator for a johnson they wanna get ride of?

thanks

ps i been reading the posts here and have learned a load of info already!

thanks again

 

[WillyBWright]

Re: tach feed

Welcome to iboats.



There may be a tiny rotaty switch on the back of the tach. Make sure it's snapped into position.

It's possible for the regulator tach lead to fail but still have the regulator work. T into one of the yellow stator leads with the gray lead to the tach. If that doesn't wake-up the tach, look at the tach wiring, or it needs a tach. (That's if the charging system is definately charging the battery. )

Also make sure that you have a good ground at the black wire on the back of the tach, and 12v at the purple wire with the key on.

 

[redcajun18]

Re: tach feed

so should i disconnect the grey wire from the reg then reconnect it to the yellow one? sorry but i just want it to be clear b4 i try it so i don't make any of those pesky mistakes!!

thanks again

 

[redcajun18]

Re: tach feed

you da man!!!!! i hooked it to the plain yeller one and it jumped to life!!! woooo hooooo! thanks i did hook it to the yel/blustriped one and nuttin happened, is that normal? does it mean my chargin system is only half good?

anywho thanx again!!

i just love this place

 

[WillyBWright]

Re: tach feed

I think that's what it means.