If the sled starts and idles smooth, it’s probably fine. Ask about maintenance. Oil changes, bearings, etc. make sure the reverse works perfectly, because they tend to get messed up and pop out of gear( and grind). Check the mounting tabs for the headlight, on both sides ( they break). Look at the heat exchangers under the floorboards ( they crack and leak). Check for loose rivets in the tunnel, and cracks in the chassis, ESPECIALLY where the a-arms mount. Take a couple rags to hold over the exhaust tips, to see if the exhaust has any leaks. Look on the speedo for any error codes. On startup, the dash has a red warm up light. Don’t touch anything until it goes out, or risk fouling the plugs (which are hard to get to). Everything else is basically like other sleds.