: Pull the oil dipstick. If the oil is milky or looks like a chocolate milkshake, water has entered the engine—usually from being submerged in a pond or river. Walk away .
The "inside" of the engine tells the true story of its life. how to buy a used atv
: Every model has its quirks (e.g., specific bushings that squeak or known electrical gremlins). Research these ahead of time to ask the seller if they have been addressed. : Pull the oil dipstick