Posted by Eddie M on 02/27/17 - 8:57 AM
#19
tsa, three holes up is where I mount my F70 motors and Alan has listed the size propeller information which used to be the only size Yamaha made for this combination. I used that on a Standard 17' and it reached 6300. Our Montauk would only hit 6000 to 6100 depending on wind and tide. Yamaha makes a new clunk-less prop for the F70. It is stamped 14-K X 13 1/8 (PN 6N7-45970-00). It is also a performance series (Talon SS) polished prop and hits the maximum RPM mark for the motor which is 6300. 29mph for a F70 on a Montauk can be corrected easily. As you can see Splittersplatter, its an easy set up and, there are members here that have the same information for many other Montauk/motor combinations. Good luck.