I ended up with an extra Honda outboard manual that's never been opened. I know lots of you guys have these model motors like I do. I've listed it on ebay and I'm sure it will sell pretty cheap if you're interested.
One can also order Honda shop manuals from Helm, or through your dealer. For a 150, it's about $60, well worth it. At the very least, use it to see if your dealer is doing the right thingey.