Same story almost verbatim for my Harley, Fun part is I'm setting with the Bunco Guys at work responding to this douche-bag. I think we'll have some fun with it.
This is a scam "PLEASE DO NOT RESPOND OR SEND ITEMS TO THIS GUY" He states he is a marine in the military and will send the money/check to you and he wants you to send the merchandise to him. I listed a car on craigslist and he sent me a text message. He only sends text messages. When I asked him to call me he never responded back at all. My friend tried calling the number back and no one answered at all. Whatever you do please don't release any personal information about yourself including a pickup address or anything.
Just got a text from this number. I have my bike posted in several ads and this person texted wanting to know the condition. The ads are in Oklahoma, the number is from California. Got a text like this the other day as well from a number out of Michigan 810-476-5829. Beware out there.