1. Do a compression test to give you an idea on the condition of the top end. If stock(ish) you should see somewhere in the 120psi range. These testers can be found at Sears.
2. Stand up, grab the bars, and give the bike hell back and forth, etc... See where its loose. The front ball joints are a common failure part. Also the swingarm bearings and pivot tube see a lot of wear too.
3. Check the chain, and the engine cases by the front sprocket. There is commonly case damage here from a thrown chain. This usually does not leak, or cause further issues, but its cosmetically bad. Also make sure the chain tensioners int he back are in good condition.
4. Go over wiring and make sure nothing is hacked up. Check to make sure the lights and kill switch work of course.
5. Check air filter for proper installation. If there is a bunch of dirt in the carbs, for instance, I wouldn't want it! (Or hammer him down on the price lol)
6. Use common sense. Hang out here on HQ for a bit and do some homework. U can usually find a banshee on here to suit your needs for less than it would take for you to build one yourself. A lot of good deals out there and you came to the right place to begin your search!
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