On 9/1/15 3:26 PM, Oren wrote:
On Tue, 1 Sep 2015 12:22:04 -0700 (PDT), wrote:

Of course make sure the blade has stopped completly before mucking around under there.

...I think you mean to also pull the spark plug wire off the plug

I like to clean a riding-mower deck with the blades turning. I've used
a couple with garden-hose adapters for the purpose. It's quicker than
removing the deck. I don't recall a riding-mower manual that said to
pull the spark-plug wire before removing the deck.