RE: 86"yak, DA50.........prop question
If the motor is new it's probably better to start out with a 22x8. I've been using the Bolly 22x8 for seven gallons and I'm about ready to switch to the Vess 23A. The Bolly does perform very well though!!! It is a true 22''prop, not 21 1/2 like some.
Marc 540[8D]