Max HP for a 240 O'DAY

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dsreichert

dsreichert

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Jul 1, 2012
6
oday 240 Forked River NJ
Currently I have an 8HP Johnson Sailmaster on an '88 240. This motor is probably original to the boat and its on its last leg. What do you think the max HP I could comfortably get?
 
Tom J

Tom J

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Sep 30, 2008
2,325
Catalina 310 Quincy, MA
I had a Yamaha 9.9 HP four stroke on my O'Day 23. I wouldn't go much bigger than that. It was actually more power than I needed, but, boy, that extra thrust in reverse was sweet.
 
anchorclanker

anchorclanker

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May 27, 2012
1,152
Oday 222 Beaver Lake, Arkansas
I would have the sailmaster overhauled. 8 HP is probably sufficient, but you shouldnt need anything above 10. Honda's are nice. A 9.8 should work well. You can find good used ones reasonable if you keep a watchful eye.
 
Joe11688

Joe11688

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Jan 24, 2005
4,881
Oday 222 Dighton, Ma.
I had my Johnson two stroke 8 hp overhauled last year. My 1999 Johnson outboard has the shift lever in front of the engine and it has the charging system. They're worth fixing.

Joe
 
dscribner

dscribner

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Nov 9, 2008
1,338
Pearson-O'Day 290 Portland Maine
I've heard of many folks in our size range using 6 HP engines and being more than happy with the performance. I have an 8 HP like yours and I don't think the extra 25% would really do any good. Hull speed is hull speed so if you can't get it planing, anything more is a waste. A 4 stroke would be nice though. And I'm sort of interested in a propane engine. Supposedly cheaper to operate than gasoline and nor carburetor to screw up.
 
D

djplatt

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Mar 16, 2011
48
Sirius 21 Bronte
I have an ODay 240 and have an 8 horse Tohatsu 4 stroke. It drives the boat to hull speed on about half throttle. I would have bought a smaller engine but wanted a twin for reduced vibration and charging. I don't see any point in going larger. It would add weight, use more fuel and would not drive the boat any faster.
 
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