Honda wants valve clearance checked at 16k

Yes, if they do a valve adjustment plus whatever else you let them talk you into you'll be looking at a major service charge. Expect to pay over $1,000 for a big going over.

A service manual is cheap compared to labor rates at a local shop. You can probably even d/l one for free if you look around.

honda get what honda want!!!!!! Or honda smash!!!!!!!!!!