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  what a best combination setup for this????

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Author Topic:   what a best combination setup for this????
willyjoe1 posted 05-15-2001 04:45 AM ET (US)   Profile for willyjoe1   Send Email to willyjoe1  
the buddy of mine just bought a 2001 merc.optimax 225 for his 86 22 outrage, because of the warranty problem, this motor have to install by a dealer, now dealer told him they will use his old prop. a ss 19" offshore, it seem to me this merc. optimax 225 is lot biger engine than his old yamaha 200,the 19" offshore may be too small for this merc optimax, now what is best combination for this setup, he use this outrage only for fishing offshore, thanks any input
triblet posted 05-15-2001 10:12 AM ET (US)     Profile for triblet  Send Email to triblet     
Install the motor, use the old prop and
keep an eye on the tach. If/when it turns
out to be to small, then worry about it.


lhg posted 05-15-2001 01:19 PM ET (US)     Profile for lhg    
That boat is going to fly. The 19" Merc 4 blade Offshore my be too low pitch, but will still give the boat 53mph, handling total loads of 3600-5100#. From looking at Mercs prop charts, I'm guessing a 21 may be needed if boat is lightly loaded, about 62mph, handling total load of 2900-4500#!

What's confusing you is the different gear ratios of the engines. The 225 is much higher, giving more speed for a given rpm.

The Yamaha 200 is not a particularly strong 200, and the Optimax 225's are strong 225's. He'll be amazed at the difference in performance.

willyjoe1 posted 05-15-2001 03:21 PM ET (US)     Profile for willyjoe1  Send Email to willyjoe1     
sorry, i made a mistake on tne outboard, the yamaha outboard was not a 200, but a 225 and he is using his old yamaha prop which is a 19 inch pitch. My question is weather he should keep this prop on or use the 19 inch offshore prop that he got with his motor or trade it for a different style. Also the 225 yamaha did 5700-5800 rpm and ran around 53 mph. thanks
willyjoe1 posted 05-15-2001 04:16 PM ET (US)     Profile for willyjoe1  Send Email to willyjoe1     
oop lhg not jhg
what a day
lhg posted 05-15-2001 07:10 PM ET (US)     Profile for lhg    
He should use the Mercury 4 blade, vented "Offshore" model prop. Louie Kokinis says those run beautifully on his 22, also with a 225 Merc. 19" or 21" pitch is the question.
For max top speed, the 21, for load carrying, the 19. Don't use the old Yamaha "elephant ear" SS prop.

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