Small Engines (Lawn Mowers, etc.): valve specs, kubota engines, valve clearance

Question
Hi Eric, I have a Kubota WG600 I would like to know were to find valve lash specs for this motor, I am doing a complete tune up and have never set the valves since it was new.          
Thank you for your time    Dave

Answer
Check out this link:

http://www.justanswer.com/small-engine/1colo-three-cylinder-kubota-engine.html

I would suspect the clearance is 0.006 - 0.007" on the intake and 0.009 - 0.010" on exhaust. This is , its the most used valve clearance on Kubota engines. I would check what the clearance of each valve first before adjusting anything and see it the clearances are close.

Eric