How to check engine rpm

[rzkas]

Hi? I have a 1995 bayliner capri ls with a 120 force outboard engine. My boat doesn't have a tacometer but i want to know my engine rpm at full throttle. How do i go about to check my rpm at full throttle?

WHAT IS THE MAXIMUM RPM FOR THIS ENGINE AT FULL THROTTLE?

Thanks

 

[fucawi]

Re: How to check engine rpm

you need an electronic tacho which picks up from a plug lead.... These come under the Tiny Tach brand but there are others ..research e bay...If you want a dash mounted round tacho then you will need one to match the poles on your alternator .......not sure of your rpm someone else will let you know .

 

[savvyoasis]

Re: How to check engine rpm

I want to add a tach to my force 125 aswell....which one will work.