If you're seriously considering a bike, see it in person and check that it's in good condition. There are a few standard items to inspect, including:

Tires: Look for uneven wear and signs of damage.
Fuel tank: Check the inside and out for signs of rust and dents.
Body: Look for signs of damage, such as scratches or dings. The chrome and paint should be shiny and rust free.
Drive chain and sprocket: If you can easily move these, the sprocket may be worn out or not maintained properly.

You may also want to have a mechanic check over the bike to look for any potential issues. RideApart.com also suggests that you ask for the service records, as they may show whether the bike has been maintained properly. Also, if you have the option to take a test ride, you should, says RideApart.com. This will give you a feel for how the motorcycle runs and whether you like it.

When buying a used motorcycle, you need to do your homework and ensure you're truly getting a good deal and the right bike. But with a little research and preparation, you may just find your next ride.