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  #1  
Old 10-25-2014, 11:04 AM
bgreene bgreene is offline
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Default 23' Seacraft Sceptre with 250 Yami 4 stroke

What top speed would you expert expect assuming all is good with engine and clean hull, not waterlogged ?

Figure late 80's Sceptre
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  #2  
Old 10-26-2014, 05:33 PM
bgreene bgreene is offline
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Seller reports high 30's to 40........... that sounds a bit slow for a fresh 250 ?
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  #3  
Old 10-26-2014, 07:11 PM
77SceptreOB 77SceptreOB is offline
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That does sound a little low. The motor might be mounted low and plowing.

I get 39 mph with an old (1988) 225 Yami 2-stroke with a light load.
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  #4  
Old 10-26-2014, 07:40 PM
Bigshrimpin Bigshrimpin is offline
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Quote:
Originally Posted by bgreene View Post
What top speed would you expert expect assuming all is good with engine and clean hull, not waterlogged ?

Figure late 80's Sceptre
I have been on two 23 seacraft cc's with yamaha f225's. Top speed is 44/45mph.
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  #5  
Old 10-26-2014, 08:52 PM
pelican pelican is offline
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some guys use "knots (kts)"

others use statue miles....
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  #6  
Old 10-26-2014, 09:26 PM
77SceptreOB 77SceptreOB is offline
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Quote:
Originally Posted by pelican View Post
some guys use "knots (kts)"

others use statue miles....
Good point!
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  #7  
Old 11-01-2014, 09:06 AM
Andy Andy is offline
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I have just completed a complete resto on a 73 cc 23" and used Divinicell in a lot of places to improve longevity and lighten the boat. It is going to have an Armstrong or other Bracket with either a 250 Yama or 300. Anythoughts on Bracket choice of speed with these two power options
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  #8  
Old 11-01-2014, 10:23 AM
pelican pelican is offline
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Quote:
Originally Posted by Andy View Post
I have just completed a complete resto on a 73 cc 23" and used Divinicell in a lot of places to improve longevity and lighten the boat. It is going to have an Armstrong or other Bracket with either a 250 Yama or 300. Anythoughts on Bracket choice of speed with these two power options

a bracket with a tub as large as possible....hermco fiberglass bracket is the way to go
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  #9  
Old 11-01-2014, 06:19 PM
kmoose kmoose is offline
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Mount it on the transom with a 10" CMC. Less weight, plenty of room, and easy adjustment. I'm running a 250 30"Zuke and it fits great.

My Tsunami is heavier than most and has seen 42 knots with a light dive load. That's right at 48 mph for those of you that drive those amphibious cars.
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  #10  
Old 11-01-2014, 06:22 PM
kmoose kmoose is offline
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CMC bracket set up.... Way cheaper option as well.
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