so this bayou is a kl* 300, 2 wheel drive ???
sounds the same as the lakato klf300a we had, so the manual should be very similar for the motor
i can get it emailed to you next time i'm down my moms, sometime over the weekend here
and yes i did a complete top end rebuild on it, what a pain in the ass, gettin the plastics off and on was worse than the engine rebuild, you gotta remove the racks to get to the plastics, the the rears to remove the fronts and tank to get to the motor, you may be able to reach in and get the rear valve adjusted, the front one is easily accesible
and yeah, you got the valve adjustment correct, i'd possibly pull the timing gear cover, and get the marks lined up on the gear and case, that should put you at tdc, and then adjust the valves as you stated, if i'm not mistaken the lash was .005 < but don't hold me to that, it was a few years ago
and it still made top end noise even after all that, sold it like that, ticking on top, and the guy still beats the hell out of it today