The 2025 Yamaha YFZ50 is Yamaha’s smallest ATV and its entry point for young riders age 6 and older. A 49cc engine makes about 3 hp, while an automatic CVT removes gear shifting from the learning process. Its compact 165 lb chassis and throttle limiter screw give a parent an appropriately modest platform for teaching basic skills. Those features do not make riding risk-free. Correct fit, a helmet and direct adult supervision matter every time. Our best beginner ATVs guide covers the wider youth market, while the guide to reading ATV and UTV specs explains the numbers used here.
Engine and controls: deliberately modest
The YFZ50 uses a 49cc air-cooled single-cylinder engine producing about 3 hp. Its automatic CVT means the rider does not need to operate a clutch or select gears. Power goes only to the rear wheels, which is normal for a small youth sport ATV.
Three horsepower is intentionally limited compared with 90cc and 110cc youth machines. A throttle limiter screw lets an adult restrict performance further during the earliest sessions. The setting should only be opened gradually after the child consistently demonstrates smooth throttle use, controlled braking and reliable steering.
Safety and rider fit
The YFZ50 carries a 6+ age label, but age alone does not prove that a child is ready. The rider must reach every control comfortably, keep both feet on the footrests and understand instructions. Practice should take place in a closed, level area away from roads, traffic, passengers and adult machines.
A properly fitted full-face helmet, eye protection, gloves, over-the-ankle boots, long sleeves and long pants are essential. The dataset lists a throttle limiter but no safety tether. Parents who want a tether should verify the exact model and available equipment with a dealer. Neither device replaces training or supervision.
Size and limitations
At 165 lb, 31.5 inches wide and 33.9 inches between the axles, the YFZ50 is substantially smaller than Yamaha’s 110-class youth ATVs. Ground clearance is 3.9 inches, which suits a prepared riding area better than rough, deeply rutted terrain. The fuel tank holds 0.7 gallon.
There is one seat and no tow rating. Children should never carry a passenger, use the ATV for work or ride an adult machine because they have become comfortable on the YFZ50. Progress should be based on physical fit and demonstrated skill, not pressure to move up quickly.
How it compares
The Can-Am DS 90 costs $3,349, makes about 6 hp and weighs 271 lb. It includes a speed limiter key and safety tether in the dataset, but carries a 10+ label. The YFZ50 is $950 less, 106 lb lighter and intended for a younger age group. These are not interchangeable machines. Compare their specifications.
The Kawasaki KFX90 costs $3,199 and makes about 6 hp. It is 278 lb and carries a 12+ label, so it is not a suitable substitute for a six-year-old simply because both models use an automatic CVT. The Yamaha is smaller and gentler, while the Kawasaki is sized for an older rider. See the direct comparison.
Where it sits in Yamaha’s lineup
The Yamaha Raptor 110 is the next sport-styled youth step. It makes about 7 hp, weighs 278 lb and is labeled for age 10 and older. It also includes reverse and electric start in the dataset. The Raptor is not merely a faster YFZ50. Its larger dimensions and higher age label mean the child must be ready physically and behaviorally before moving up. Compare both Yamaha youth ATVs.
Price, pros and cons
At $2,399, the YFZ50 is the least expensive Yamaha ATV in the dataset. The good: a true 6+ youth size, modest 3 hp output, automatic CVT, low 165 lb weight and adjustable throttle limiter.
The catch: only 3.9 inches of clearance, a 0.7-gallon tank and no listed safety tether. It is quickly outgrown compared with larger youth machines, but buying oversized equipment to avoid that outcome is not a safe compromise.
The verdict
The 2025 Yamaha YFZ50 is a sensible first ATV for a properly sized child age 6 or older. Its small chassis, automatic transmission and throttle limiter support gradual learning without introducing unnecessary performance.
The adult remains responsible for every session. Match the ATV to the child, begin with a conservative limiter setting, insist on full protective gear and supervise directly. Use the comparison tool to check other youth models, or browse the full database by age class, power and price.
