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1967 Nauset Yamaha F90
motttocs	#1  Posted on 03/23/21 - 9:27 AM
Member Personal Page Posts: 13 Comments: 0 Joined: 08/20/20	Anyone running a Yamaha 4 stroke F90 on a Nauset, Eastport or Sakonnet? If so, any issues that came up? Almost ready to splash mine.
Weatherly	#2  Posted on 03/23/21 - 3:14 PM
Member Posts: 752 Comments: 4 Joined: 12/31/06	How did you rig the F90 on the 1967 Nauset? How many holes up? What propeller are you running? I suspect you will experience porpoising the heavy weight of the F90.
motttocs	#3  Posted on 03/23/21 - 4:12 PM
Member Personal Page Posts: 13 Comments: 0 Joined: 08/20/20	I believe it's 2 holes up no prop brand new. I have two batteries and a SS 27 gal fuel tank under the console Also have the RPS seat.
Joe Kriz	#4  Posted on 03/23/21 - 4:17 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	Motor Mounting Height article: https://www.whalercentral.com/article...cle_id=106 Engine Bolt Pattern versus Blind Hole mounting: https://www.whalercentral.com/article...icle_id=82
Weatherly	#5  Posted on 03/23/21 - 4:23 PM
Member Posts: 752 Comments: 4 Joined: 12/31/06	Those are two good articles to digest that Joe posted. Pick up one of the props Phil recommended. Go out and do a test run. You may want to go to "three holes up" with the F90. You also will discover quickly that you will never need a 27 gallon fuel capacity onboard given the F90's fuel efficiency. Please report back to us with performance date. The more details the better.
motttocs	#6  Posted on 03/23/21 - 4:27 PM
Member Personal Page Posts: 13 Comments: 0 Joined: 08/20/20	it's actually one hole up rt now. Also looking for the best prop for this. It's a 2020 Yamaha F90 2.15:1 gear ratio and has a 6000 RPM redline
motttocs	#7  Posted on 03/23/21 - 4:28 PM
Member Personal Page Posts: 13 Comments: 0 Joined: 08/20/20	Will do thx
motttocs	#8  Posted on 03/26/21 - 8:58 AM
Member Personal Page Posts: 13 Comments: 0 Joined: 08/20/20	My boat guy took it out today with a 13 x 15 SS with one hole up. ran 5200 to 5300 with little trim available. No porpoising. Go two holes up with a 18 or 19 pitch?