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Results 106 to 119 of 119
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02-13-2011, 10:05 PM #106
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02-13-2011, 10:11 PM #107Junior Member
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02-13-2011, 10:20 PM #108
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02-13-2011, 10:22 PM #109Junior Member
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02-13-2011, 10:26 PM #110
No. All earlier 3 cyl. OMCs had inferior porting, at the very least.
That's a 1975 or later 70 or 75 block. A difference between the two
is chamfering of the exhaust ports on the 75. The thinnest, lightest pistons
were in the 1974 70. I have three, in my stock of about 35 pistons
for the 75. Never tried them, was always too afraid of metal failure.
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03-16-2011, 09:09 AM #1115000 RPM
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You have the greatest information, just want to say thank you!
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03-21-2011, 11:36 AM #112
Thanks. Since you like my posts I'll add that I've known Paul since our NOA days
1958-60. You should have seen the Scott 40 run on one of the first wooden Allisons.
We bought them the next year and ran Mercurys (faster, but the Scott was impressive).
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05-10-2011, 09:40 PM #113
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05-10-2011, 10:01 PM #114
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04-23-2016, 09:52 PM #115Screaming And Flying!
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Another great thread . You will have to ask DoktorC about this triple.
Last edited by FMP; 04-24-2016 at 09:54 AM.
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04-24-2016, 05:07 PM #116
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Mark75H liked this post
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04-24-2016, 05:10 PM #117
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04-24-2016, 07:30 PM #118
40hp Yamaha
40hp Yamaha triple
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04-24-2016, 07:32 PM #119
40hp Yamaha