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Old 04-04-2005, 07:48 PM
HatTrick HatTrick is offline
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Join Date: Jan 2005
Location: Westport. MA
Posts: 189
Default Re: New Yamaha 4 stroke numbers

Bottomline,
My old motor was a 1986 Merc 150 black Max with a 15x17 aluminum prop and I would get 32 mph (gps) at 4500 - 5000 rpm with a 1/2 tank of fuel and two people on board. I don't know what I'll see at those rpm's with the new motor, but I'll let you know when the break in period is over. All I know is that the new motor is peppier at low rpm's.
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'86 20 ft CC with 4-stroke 150 yamaha
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