Watch for Low or Dirty Coolant
The liquid cooled engine is very popular in the ATV and UTV world, so be sure to check the condition of the coolant. Make sure the engine is cool before removing a radiator cap as it can be under pressure and cause severe burns if the engine is hot. Since the radiator is subject to debris thrown up off the trail, inspect it for damage. You need to do this because if the engine has been overheated or ran with little effective cooling there could be hidden damage in the machine’s powerplant. Coolant should be a consistent orange or green color unless an aftermarket coolant has been added. An oily look or any particles in the coolant will warn of potential problems. Coolant also acts as a lubricant and if replaced by tap water there will most likely be corrosion inside the motor.