The ratio of piston surface area, and consequently pressure, is real large on these motors in comparison to the thrust area on the rod big end shells. Once I get them looking good during the bi-annual top end teardown, I will leave them alone for longer periods.
That Kawasaki is really tempting. Right now I have a good credit rating, a job, and a visa card. Heck, with one of those all I need is to buy a bunch of aluminum sheets, ten boxes of pop rivets, and a couple of bottles of propane. No motor work needed.