"hudgevudge wrote:
Do I need to "test" a new Honda BF15 outboard?

Yes, absolutely.
I have the same exact motor (except 20hp) and my water pump went out
fairly quickly. I believe it must have dry rotted before the engine
ever came out of the crate. Cost me $140 to replace. Point being,
don't count on everything being right just because it's new.

If so, do I need to use a "ear muff flusher"? I know they have a
garden hose attachment--can that be used to run the engine briefly?

Something you should know. Before you put the earmuffs on, remove the
screen (easy with a screw driver) at the water intake. Unlike any
other outboard I've ever owned, the Honda screen will actually block
water being forced in by a garden hose. I have NO idea how or why. And
watch the exit hole to make sure water's getting through. A Honda
Tech clued me in to that little piece of info. I thought he was full
of BS but I've tried both ways (screen in/screen off) and sure 'nuff,
he was right.

Rick