I asked this in another board but I think some motor experts might be able to better answer the question. I'm getting a very hard pull to the right out of the start until planed out. I have a Stratos 201 fs with a 225 johnson and 3 blade 21 pitch prop on it. I also have a 4 blade 25 pitch prop. Would switching over to the 25 pitch eliminate some of that pull?
Just a guess but I would check the set up on the rig. You may be too low on the transom. The 21" 3 blade isn't a OMC prop. Your prop should be ~ 3.5" below the pad.
Do measure from the top, center, or bottom of the prop?
Very bottom of the pad with the trailer leveled and trim the motor down and level to the trailer. Measure from the very bottom of the pad then to the center of the gear case. Subtract that number from the pad number. That is your prop to pad ratio.
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