I'm looking at a Yamaha four stroke 25 hp in a 15" shaft for use in the flying saucer. I'd like to rebuild a vintage motor but the environment is a big concern so would the Yamaha be ok at 126 lbs or is this to heavy. It also comes in a 20" shaft but I'm thinking 15" is the way to go. Any advise would be welcomed. I'd like a larger motor but the 30 hp jumps up to 216 lbs and that's got to be to heavy.
Thanks John
Motor for flying saucer
Moderator: ttownshaw
-
Bill Edmundson
- Posts: 11325
- Joined: Wed Nov 23, 2005 6:45 am
- Location: Birmingham, AL, USA
- Contact:
Re: Motor for flying saucer
John
I think the 30 would be a waste of money. The added HP comes at a cost. If you look at power to weight ratio of the running boat, there would be very little gain in performance. Save your money and some gas and go with the 25.
My guess at numbers says that the 25hp will get you to 28 MPH. The 30hp will get you to 30 MPH. Bolt the 25 down! I've heard of them walking off in the middle of the night
My opinion,
Bill
I think the 30 would be a waste of money. The added HP comes at a cost. If you look at power to weight ratio of the running boat, there would be very little gain in performance. Save your money and some gas and go with the 25.
My guess at numbers says that the 25hp will get you to 28 MPH. The 30hp will get you to 30 MPH. Bolt the 25 down! I've heard of them walking off in the middle of the night
My opinion,
Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
Tahoe 19 Build
Tahoe 19 Build
Re: Motor for flying saucer
Thanks Bill I have Yamaha fs 25 on my Crestliner kodiak 16'-7" side console with a 700 lb hull weight which does 28 mph on the dot and 26 with 2 adults 25 with 4 so it's got great power and good speed the motors got several seasons on it so I think I'll get anouther for the FS. My brother has a old Johnson 35 that runs in the mid 30's on his 16' aluminum it would be nice to be faster but I don't think it's going to happen with this one. Who knows what will happen but I want to make sure a new motor is available that will get me close to 30 mph while building so I can keep it as an option.
Getting excited to order the plans soon and get this baby off the bucket list, it's been a very long wait.
Regards John
Getting excited to order the plans soon and get this baby off the bucket list, it's been a very long wait.
Regards John
Re: Motor for flying saucer
As a point of interest, Yamaha released an all-new F25 outboard in 2017 that has received little other than glowing praise (in the reviews I have read). Seems like a very sound choice.