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KF-3 serues is a curious beast. Powerhead is vintage Kiekhaefer until you get to the parts that adapt it to the KF-5 tower…from there it gets complicateed. Then they changed things with each production run. Version I am working on has shear pin,others have the alternating stainshle steel and fiber discs with a difnt propeller, propeller shaft and prop nut. A lot of p new parts to replacea a shear pin. Then they moverd the water pmmp, added springy thingym neutral with a new casting and
a wire cable linked to handle.`The end result was something no owner could fix, and now deler wanted to.
So it seems ti ne anyway, Early K Models were somethhg anyone could work on and most could fix.
Louis