ATV mechanics repair and maintain all-terrain vehicles. In this role, you perform preventive maintenance on ATVs, such as tuning the engine and changing the oil. When a customer brings in a vehicle that has a malfunction or needs repair, you use computerized diagnostic systems to assess the problem, determine the best way to fix it, then complete the repair in a reasonable timeframe. You must also document customer information, file the diagnostic report, and manage the inventory of tools and spare parts at your facility. ATV mechanics may also work on other vehicles, motorcycles, snow machines, recreational off-highway vehicles (ROVs), and utility task vehicles (UTVs).