If he's the legitimate owner and he just lost the title then getting a new one is extremely easy in Tx. Literally takes about 2 weeks to get it. Whether he is or not and you buy it then you could be opening a big can of worms in terms of fees, etc. if you ever want to legally register the bike. Even if you don't plan to, you'll find that selling a bike without a title is a pain and you take a big hit on the price. Most folks nowadays are smart enough to stay clear of potentially stolen property. Personally I'd skip this one unless you plan to just strip it down for parts. Its a bad investment if you plan to keep the bike.