Installing tach on 25hp yam 4 stroke 2005

[Zjb187]

Can anyone help me find the easiest and cheapest way to install a rpm
tach on this motor it is a pull start if that helps I just want to check rpms to decide on what pitch prop to use? Thanks

 

[Silvertip]

Re: Installing tach on 25hp yam 4 stroke 2005

For rope start/tiller steered outboards the "Tiny Tach" is about the cheapest and easiest to install. It has an internal battery and the only wire to connect is one that wraps around a spark plug wire. Can be connected temporarily or permanently. They are little digital readout displays much like the hour meters you see on garden tractors these days. Just make sure you get one for a four stroke -- number of cylinders is a non-issue.

 

[Zjb187]

Re: Installing tach on 25hp yam 4 stroke 2005

Thanks a lot .. I knew about the tiny tach just thought they were for 2 stroke only but I'll order one now thanks

 

[99yam40]

Re: Installing tach on 25hp yam 4 stroke 2005

Here is one that I found that works on my c40 when others would not because of the interference from the CDI ignitions. EZ Tach Plus

http://www.matcotools.com/Catalog/toolcatalog.jsp?cattype=T&cat=2481&page=8𐂲