2008 25hp Yamaha 2 Stroke How often does the ignition fire? - Tiny Tach Setup

[Skidooosl]

I am trying to setup a Tiny tach to work with my 08 2 stroke 25hp Yamaha.... I need to know when the ignition fires to get an accurate reading so I can be sure I have the correct prop on it.

The Tiny Tach has the option of the following degrees
45
60
90
120
180
360
720

How many sparks per revolution does this outboard have?


Thanks!

 

[deejaycee_2000]

Re: 2008 25hp Yamaha 2 Stroke How often does the ignition fire? - Tiny Tach Setup

Do you actually have to set that on the tiny tach itself? All you need to do is wrap the wire 3 times around the bottom coil lead and there you go .....

 

[Skidooosl]

Re: 2008 25hp Yamaha 2 Stroke How often does the ignition fire? - Tiny Tach Setup

You have to set how many sparks per revolution... I would assume it would be 1 per cyl / rev but not sure....

Here is a link to the setup where they talk about setting the degree

http://www.tinytach.com/tinytach/pdf/TT-2A-operating-instructions.pdf


Thanks!

 

[arkansasbowhunter]

Re: 2008 25hp Yamaha 2 Stroke How often does the ignition fire? - Tiny Tach Setup

did you get it figured out. I am thinking of investing in a tiny tach also.

 

[rodbolt]

Re: 2008 25hp Yamaha 2 Stroke How often does the ignition fire? - Tiny Tach Setup

on the 08 25, 180* or twice per revolution.
anything else may be different.
its not a waste spark system.