Back on 12 Mar, 2017, by Member Sparklnd, there was a similar post and...I posted almost identical version rel. my commercial mower. Serial #MAKA-11298374...but never received any valid solutions. Would like see if any help now available? "Sometimes the yellow lever lock button, abruptly releases...causing the blade to quit turning. Honda spec. Free play of the "Blade Control Lever Adjustment" is 3/4 - 1". I have tried all variations within the Honda spec...but problem still remains. Anyone know of proper fix? or have access tob aHoda Service Bulleting, 2009, that supposedly may address this issue?