Mercury 9.9 outboard...?

Question

I'm trying to figure out how to attach a tachometer to my 2002 2 stroke 9.9 outboard ( 2 cyl) to gauge propeller pitch. anyone know how the heck to do that?

Answer 1

I don't know if there is a tack lead unless it electric start with a harness> Go by sound an power if it a dog taking off than to much pitch>The prop they come with usually lets the Engine slip enough to reach  Max Rpm>

Answer 2

if it's electric start, find the rectifier.  the gray wire off it is the sender wire for the tach.  if not, you will need a shop tach of some kind.