There are several reasons for buying wrecked motorcycles, from needing parts for a bike you already have, to buying a bike as a project to repair and restore. Wrecked motorcycles are much cheaper up front than a new bike, but they can require a lot of time and work to really bring up to standard. If you want to buy a wrecked bike or two, though, it isn't a hard process. You just need to find someone who's selling.
Decide what type of motorcycle you want, and what condition you need it to be in. You should have a make and model in mind, as well as a year or range of years that you're interested in, to narrow down your searching. If, on the other hand, you just want to browse and see what catches your eye, then you can shop with an open mind.
Check through your local newspaper's classifieds, and through Internet classifieds on sites such as Craigslist, for wrecked motorcycles in your local area. If you find a motorcycle that's being sold locally, you can go and look at it, and verify the condition it's in before you by it. Seeing the state of the bike with your own eyes can be very helpful.
Shop via the Internet for wrecked motorcycles. You can find ads for wrecked motorcycles on sites like eBay, but other sites like Wrecked Bike specialize in selling non-working motorcycles. You need to carefully weigh the condition the ads claim the bike is in and examine the pictures provided, but shopping for wrecked motorcycles in this fashion can give you access to a much larger market.