ATVYouth
2025 Kawasaki KFX90
89cc Single-cylinder, air-cooled
$3,199
View full specsKawasaki KFX90 vs Yamaha YFZ50
2025 Kawasaki KFX90 vs 2025 Yamaha YFZ50: 6 vs 3 hp, 89 vs 49 cc, 278 vs 165 lb, $3,199 vs $2,399. Full side-by-side specs: engine, drivetrain, dimensions, towing and price.
ATVYouth
2025 Yamaha YFZ50
49cc Single-cylinder, air-cooled
$2,399
View full specsAt a glance
More power6 hpvs3 hpKFX90 wins
Lower price$3,199vs$2,399YFZ50 wins
Lighter278 lbvs165 lbYFZ50 wins
Bigger engine89 ccvs49 ccKFX90 wins
Ground clearance4.5 invs3.9 inKFX90 wins
Towingn/avsn/aTie
Across measured specs the KFX90 leads in 4 categoriesand the YFZ50 in 2. Comparing two youth ATVs, the KFX90 runs a 89 cc single-cylinder making about 6 hp, while the YFZ50 uses a 49 cc single-cylinder rated near 3 hp. The KFX90 has the power edge (6 hp vs 3 hp). The YFZ50 is lighter at 165 lb (vs 278 lb). At $2,399 the YFZ50 is the more affordable of the two.
Full specifications
KFX90 Kawasaki · 2025 View | YFZ50 Yamaha · 2025 View | |
|---|---|---|
| Engine | ||
| Displacement | 89 cc | 49 cc |
| Engine configuration | Single-cylinder | Single-cylinder |
| Cylinders | 1 | 1 |
| Cooling | Air | Air |
| Power (approx.) | 6 hp | 3 hp |
| Fuel system | EFI | EFI |
| Starter | Electric | Electric |
| Drivetrain | ||
| Transmission | Automatic CVT | Automatic CVT |
| Drive system | 2WD | 2WD |
| Dimensions & capacity | ||
| Seating | 1 rider | 1 rider |
| Dry weight | 278 lb (126 kg) | 165 lb (75 kg) |
| Overall width | 41.5 in (105.4 cm) | 31.5 in (80 cm) |
| Wheelbase | 41.3 in (104.9 cm) | 33.9 in (86.1 cm) |
| Ground clearance | 4.5 in (11.4 cm) | 3.9 in (9.9 cm) |
| Fuel capacity | 1.5 gal (5.7 L) | 0.7 gal (2.6 L) |
| Towing capacity | n/a | n/a |
| Pricing | ||
| MSRP (base) | $3,199 | $2,399 |
| Model year | 2025 | 2025 |
Highlighted figures indicate the stronger spec in each row. Power is approximate crank output; confirm exact numbers with the manufacturer.