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I Love microskiff.com!
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Discussion Starter #1
I recently got a good deal on a like new 2005 yamaha 50 horse 2 stroke. It is replacing a 99 yamaha 50hp 2 stroke on a 99 pathfinder 17t. Boat seems to perform much differently now and my concern is that the old prop 10 1/2 x 14 stainless with some cupping is just to small. The new motor seems to be to strong for the old prop. I know I need rpm info and I am working on that today but does anyone run a similar setup and what prop do you use? Any info would be greatly appreciated.
Eric
 

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I Love microskiff.com!
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130 Posts
Discussion Starter #3
I believe so. Checked the rpms today with the 10 1/2"x14 prop and it was about 5600.
 

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I Love microskiff.com!
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Discussion Starter #5
No idea how many hours. Got a tach and the new 50hp is right on track. Actually 1-2mph slower then the 99.
 

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So in what ways is the boat performing differently? First post said the new engine is too powerful but now it's a few mph slower than the older engine?
 
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