I'm buying one this weekend. I'm going to take photos and scan the instructions, just in cast someone whats to read them. Thanks for the heads up..Never installed on a 5hp but I did recently install on a 30hp Tohatsu. Lessons learned were to start your wraps close to the inline noise filter on the TT inductive wire, not at the end of the wire. Also, not all plug wires gave me the correct readings, but since you only have 1 cyl, this does not apply. Once you crack the code on the setup it works like a champ. Bought my TT off ebay.
I had 2 of them on 2 different Merc 25hp 2 strokes.. Both worked flawlessly.. One of them only lasted a year, but I called Tiny Tach and the owner sent me a new one free of charge..Hope yall have better luck than me ive had a few of them and they were basically junk and lasted just long enough for me to dial in the prop on my 25 merc 2stroke and that was it. The hour meter was completely useless as well as the unit kept flaking out![]()