Is there such a thing, as a tacho you can attach to your outboard but only temporarily?
I have a 1996 df9.9 4s suzuki and I don't think its revving high enough.

I have seen tachos for cars that have a loop that goes around a spark plug lead and uses the pulse to work out revs, is there something like this for boats and if so does anyone know where I could borrow one from or rent one?

Thanks in advance

Mike

yep  about 35 bucks
go on trade me....
all thats needed is the one thin  wire coiled around a spark plug HT lead loose about 4 or 5 times.
I got one to check my dash tach that I suspect was wrong at hi rpms....
I also tested against my automotive tach and was accurate, except on the 2 stroke was 1/2 the actual rpms.
It also records motor running time

Have a hazy idea saw them at smart marine also?????

http://www.trademe.co.nz/motors/boats-marine/parts-accessories/radio-electronics/auction-693794601.htm

Thanks guys, I will order one now

Mike