my 9.9 is runing 350 rpm over redline i wanted to install a tachometer to make sure im not going over i am aware tat thereare some that connect to the sparkplug wire does anyone know what these are called
tinytach.com<br /> <br />I personally don't think 350 would do any harm. How often do you see "broken rod" posts that were overrev related?<br />EDIT: I should point out though that I know pretty much nothing about your outboard.
<br />I personally don't think 350 would do any harm. How often do you see "broken rod" posts that were overrev related?<br />EDIT: I should point out though that I know pretty much nothing about your outboard. 
