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#1
07-19-2004, 10:27 AM
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Re: Your Opinions Please...
Can't speak of the new motors but Back in '87 I put a 175 Yammy on my 1970 20' CC. It can top out at 52 MPH if and that's a big if the water is calm enough. At 50+mph it gets very light when the Long Island Sound isn't dead calm.
The Yammy has been trouble free in salt water since '87. The 175 seems to dig much better then the 150's , I don't know why the extra horses make such a difference but they do. I am big on water skiing and the 175 will rip your arms out of their sockets if you jump on it.
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1970 SF20 Owner since '83 
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#2
08-04-2004, 08:13 PM
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Re: Your Opinions Please...
I have a Merc 225 Optimax 25" shaft and transom on a 71 20' custom built boat. I like the extra power to carry extra weight if you need to and you can cruise at lower RPM's to obtain good cruising speeds, also its fun to hall arse on a flat calm Biscayne Bay early in the morning.
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Custom 71 20'CC
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#3
08-04-2004, 09:38 PM
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Re: Your Opinions Please...
'72 Seafari. Currently running a '92 Merc 150 reman'd to roughly 200 hp. Fuel economy is not that good - nearly 9 gph at cruise, and over 14 at WOT. Normal top speed is about 48-49 Statute mph, but running downwind light on fuel in a moderate chop I once got up over 50....Woooohaaaa! Suck a 43 gal tank dry in no time!
If you're getting fuel economy of under 6 gph at cruise, Praise God! I gotta wait a couple more years before I replace my hybrid 150/200 Merc. (Mostly '92 Xr4 150 - Intake, carbs and electricals from '02 200 carb motor) [img]/images/graemlins/shocked.gif[/img]
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes. Fr. Frank says: Jesus liked fishing, too. He even walked on water to get to the boat! Currently without a SeaCraft  (2) Pompano 12' fishing kayaks '73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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Hybrid Mode
