Douglasdzaster
Petty Officer 1st Class
- Joined
- Sep 11, 2020
- Messages
- 315
Will have one here tomorrow that say it will work on 2 stroke 3 cylinder as well as others. Not the exact one you posted but from the same family.One, two and once every other revolution it's OK, that tach is missing half of the equation which is the number of cylinders the motor works with. That tach is useless. Return it to Amazon, tell them it's not for your type of motor and get the one posted above....
Happy Boating