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2002 Cobra Coosa
What speeds are you all getting on your Cobra Boats.
I have a 201 with a 250 Yamaha on it and I'm only getting maybe 58 MPH at 5800rpm. I am thinking I need to adjust the jack plate a little and also get me a new prop.
Just trying to get an idea.
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I believe that there is something wrong with your set up or your motor. I run a 2003 Merc 225 EFI hanging off a 10" Slidemaster set at 2 7/8" P2P swinging a 26" Tempest+ running in the 70+ at 5700
Here is how to measure your P2P
P2P measure.jpg
What prop are you running?
What is your compression?
Is the Yammi an 02 OX66?
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I think that is a lot of the problem is that I am needing a new prob. Took it out this weekend and wasn't able to get the motors rpms above 5000 rpm.
Compression was mid 90's the last time I had it checked.
Yes it is the OX66.
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What damage do you see on the prop?
It should be spinning a Yamaha 25" prop without a problem, if the motor is sound and you have good fresh fuel.