Okay, so the hubs is working on an old Power King. I've learned so far from the forum that it's breakerless and that old Kohler K321's have very few parts available anymore. I've been digging trying to narrow down the year on this thing and finally have it narrowed down to a 75. I cannot find the owner's manual for it. I find all of the manuals say that it's for after serial number 52589 and this tractor's serial number starts with a 3. Any ideas where I could hunt an owner's manual down?