tiny tach ?

[arkansasbowhunter]

hey guys I am trying to use a new tiny tach on my suzuki 25hp 3 cylinder. Does anyone have experience using it on one. I somehow lost the directions for it :( 3 sparks for revolution 120 setting?

[FrenchPhil]

http://www.tinytach.com/tinytach/images/gas_instructions.pdf

[Fastjeff57]

I used one successfully on my little boat and it worked fine--until I pounded it really hard in some sever chop. It then went nuts and wouldn't read consistently. Also, the battery is not changable so, after a few years, you have to buy another unit.

Jeff

[arkansasbowhunter]

thanks for link. read it and will try the 120 degrees setting. The tiny tach worked great for my outboards. I only put it on when trying new stuff out though because it lets me know if I improved my motor performance.