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Author Topic:   Repowering a 15' Sport
okracoke posted 05-14-2003 09:37 AM ET (US)   Profile for okracoke   Send Email to okracoke  
I am about to repower my '80 Sport with a 60hp Merc efi and want to give the dealer good instructions on mounting it. Will the holes match and will the height be right? What modifications should I anticipate? Any cautions or suggestions will be appreciated.
BTW, this is a great forum, I have been reading posts for days.
skred posted 05-14-2003 02:39 PM ET (US)     Profile for skred  Send Email to skred     
Most reputable dealers know how to mount the motor: the cavitation plate should be parallel and in line with the bottom of the hull at the stern. (Others here say that a little above that is okay, also) My Yam 70 was replaced with a 50 Merc and the holes matched... (Depends on what you're replacing, I suspect)
lc posted 05-14-2003 05:02 PM ET (US)     Profile for lc  Send Email to lc     

I too own a 15'. I'm in the process (deciding what brand) of repowering. I've got the money, just don't know what to put on. Did you consider other outboards? Why the Merc? I was looking to a 50 four stroke efi. Was set on a suzuki, then heard some bad things about them. What factors did you look in to when making your decision? What's the final cost(motor, control box,prop, installation)? Anything you can share is greatly appreciated.

lc posted 05-14-2003 05:07 PM ET (US)     Profile for lc  Send Email to lc     
You mentioned that you have a Merc 50. Are you satisfied with its perfromance. I think you mentioned that you too have a 15'.
okracoke posted 05-14-2003 09:07 PM ET (US)     Profile for okracoke  Send Email to okracoke     
skred - the boat came from a reputable Whaler dealer (who used it as a loaner) with a 40 evinrude mounted with the cavitation plate 3" below the bottom of the hull.
It never ran right in turns. The local merc dealer started asking me questions about the hull so he probably does'nt see to many.
lc - I've been looking for a while, thought about a couple others and heard bad things. A friend of my folks is a merc dealer in Fla and over the phone he went over some of the strong points of the merc- quiet, runs well at low rpm, great fuel efficiency, strong warrantee, EFI. I thought a forty would be enough he suggested the 60, most of the posts here tend to bear that out. The local merc dealer quoted me $5650 for the motor, 140 for an aluminum prop (I'll probably get stainless) 275 for controls, 150 installation, and 70 for something else. I found a merc/whaler dealer but he hasn't got back to me.
Bigshot posted 05-16-2003 12:33 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Price seems way high to me. I can get 70 Suzukis with controls and prop I believe for less than you are getting the engine for. There is also a new 50 Merc 4 stroke in the boat trader for $4500.
skred posted 05-16-2003 01:00 PM ET (US)     Profile for skred  Send Email to skred     
My 2001 50 Merc 5-cycle (Carb) Cost me $5,300, including prop, removal and packing of old motor for shipping, installation, rigging and setup, and taxes. No additional $$. Sounds like yours is a bit high...
skred posted 05-16-2003 01:03 PM ET (US)     Profile for skred  Send Email to skred     
Almost forgot:
About my 50: Totally satisfied. Close to 40 mph lightly loaded, quiet, super on gas, and all the power I could use.
Whoever set up that old 40 didn't know much...
lc posted 05-16-2003 05:29 PM ET (US)     Profile for lc  Send Email to lc     
Is your motor on a bracket? If so what kind?
skred posted 05-20-2003 01:45 PM ET (US)     Profile for skred  Send Email to skred     
Nope, no bracket. Transom mounted. Fitted right into the '85 70 hp Yah's holes....

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