Motor capacity and Coast Gaurd ratings?

yadleinad

Cadet
Joined
Jun 24, 2007
Messages
6
I just purchased a 1989 17' bluefin with a 50hp Force that is in very good condition. I was just wondering what size motor I could put on it, the coast gaurd plate is completely faded and I can not find out the ratings on this forum or on the internet. I also thought I read in a different forum (or possibly here) that someone transplanted a force 85 powerhead into a 50hp motor, is this posible? Also what motors can I use my stock controls for? They are in good condition and I would rather not rip them out if I can avoid it.
 

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roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,657
Re: Motor capacity and Coast Gaurd ratings?

A friend had a similar vintage bluefin, believe it was rated for 90 hp.

You could try contacting Brunswick ( they bought out bluefin in about 1990).

They are the only source for a new rating placard.
If they can help you, you will need to provide the hull id number.


Brunswick Boat Group
First Tennessee Plaza Building
Seventeenth Floor
800 South Gay Street
Knoxville, Tennessee 37929
Phone 865.582.2200
 

yadleinad

Cadet
Joined
Jun 24, 2007
Messages
6
Re: Motor capacity and Coast Gaurd ratings?

Thanks I have been looking for that for weeks! I looked and i found three or four different possiblities... I will call and get a new plate, now I wont have to worry about getting in trouble with the coast gaurd!
 

puddle jumper

Captain
Joined
Jul 5, 2006
Messages
3,830
Re: Motor capacity and Coast Guard ratings?

Re: Motor capacity and Coast Guard ratings?

My boat reads
5 persons or 625 pounds
1200 pounds max fuel , people , gear
85 horse power
 
Joined
Mar 1, 2008
Messages
6
Re: Motor capacity and Coast Gaurd ratings?

A little late for a reply, but we have the same boat, rated at 85HP. We applied to our state for a new rating plate(pennsylvania) and put on a 90hp yamaha. not many newer 85hp out there.
 

force fan

Cadet
Joined
Oct 6, 2007
Messages
28
Re: Motor capacity and Coast Gaurd ratings?

Brunswick charged me $30 to rerate my boat from 85 hp to 90hp.

1988 Blue Fin 1700
85hp Force
 

force fan

Cadet
Joined
Oct 6, 2007
Messages
28
Re: Motor capacity and Coast Gaurd ratings?

Yadleinad,

I think your Blue Fin is a 1988.
 

CaptainD101

Petty Officer 3rd Class
Joined
Jun 15, 2010
Messages
91
Re: Motor capacity and Coast Gaurd ratings?

i have a blue fin spectrum and the caost guard plate is rated 50hp, and i have 50 johnson
 
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