Adding tach to an ETEC

[poolecw]

I have a 16' Carolina Skiff with a 2004 50hp ETEC. I didn't come with a tach and I want to add one of those Tiny Tachs. I need to know how the firing works so that I can order the correct tach. Some motors fire the plugs only once per rev, whereas other motores fire each plug twice per rev. How does the 50hp ETEC work?<br /><br />Thanks,<br /><br />Chris <br />South GA

 

[rabidfish]

Re: Adding tach to an ETEC

Not that much different than a carb 2 stroke.<br /><br />once, every rev.

 

[seahorse5]

Re: Adding tach to an ETEC

Poolecw,<br /><br />Since you do not have a tach on the motor, you DO have the 4 light System Check warning gauge and a warning horn, right????<br /><br />If not, you do not have a warranty on the motor.

 

[poolecw]

Re: Adding tach to an ETEC

Yes, I have the system check gauge. It also has a speed and voltage meter, but no tach! On a boat, a tach is more important than a speedometer(in my opinion). If I understand you guys right, the plugs fire only once per rev.<br /><br />Thanks for the info.<br /><br />I've been out twice with my 50hp etec and can't see a difference in the fuel level. and SMOOTH is the word that describes it.

 

[marinemech]

Re: Adding tach to an ETEC

you can add a tach or change system check gauge to a tach with system check ( both require a larger hole)<br />note tach setting is scale 6

 

[marinemech]

Re: Adding tach to an ETEC

p.s. all wiring necessary should be there