Re: reviving old seacraft (propeller question)
Tim is right, the prop is the place to start. Look on ebay. For example, a 19" Mirage Plus auction ended yesterday at under $200 on ebay.
Bitsamonkey, aQuestion: If you are using a steering cable and not hydraulic steering, can you achieve neutral steering pressure at cruise? By this I mean that, at cruise rpm in flat water, the boat does not want to turn left or right. Many times a percieved tendency to "fall off" to one side or the other is caused by a misaligned torque tab, or the wrong torque tab, especially with Mercurys, for some reason.
With different types of props sometimes you need to change the torque tab. Running a Mirage+ or PowerTech Offshore usually requires a long/deep torque tab that is offset to the rear in order to achieve neutral steering torque over more than a very small rpm band.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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