Throwing this out there for anyone installing a Tiny-tach on a fuel injected Tohatsu. I had a heck of a time getting one set up. 2013 Tohatsu 30hp MFS30B outboard, 3cyl 4 stroke. Correct Tiny tach setting is 120deg. Do not wrap the top plug wire, it will generate incorrect readings. You must wrap the middle or bottom plug wire to get the correct RPMs. Have no idea why but that is just the way it is. 3-4 wraps close to the tinytach filter, not at the end of the tinytach wire.