Originally Posted by gibbo500
Just wired up the tiny tach and revs mirror gauge.
Do i need to start playing around with the prop?
Is there any possibility that it could be the wrong Tinytach for your outboard? What revs are the Tinytach / boat rev counter showing in neutral at idle? I'm guessing the revs you are getting at WOT are about half what they should be?
My experience with two strokes ended with a Yam powervalve (bike) about 15 years ago, but I would have thought if the required idle is (say) 900rpm, your outboard will either idle like a bag of nails at 500 rpm, or will stall.
If the idle appears to be smooth (well, smooth for a 2 stroke
) and the tacho(s) do indicate 500 rpm, I would still suspect the tacho.