Yamaha YZ65 2024. Yamaha YZ85 2024. Yamaha YZ250X 2024.

Yamaha “YZF”
The “YZ” standing for “Yamaha Zinger”, and the “F” for fourstroke. This is Yamaha’s race motorbike for the tracks. Yamaha also have YZF”R”, which is for road racing (super motard).
Two stroke: Yamaha “YZ”. The addition of “F” (fourstroke) is what is changing the two stroke into the four stroke.
YZ65
Engine Type
65cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke
43.5mm x 43.6mm
Compression Ratio
8.1~9.6:1
Fuel Delivery
Hitachi Astemo® Keihin PWK28 carburetor
Transmission
6-speed; multiplate wet clutch
Final Drive
Chain
CHASSIS
Suspension / Front
KYB® inverted fork; fully adjustable, 8.5-in travel
Suspension / Rear
KYB® single shock; fully adjustable, 10.6-in travel
Brakes / Front
Hydraulic disc, 198mm
Brakes / Rear
Hydraulic disc, 190mm
Tires / Front
60/100-14 Maxxis® Maxxcross SI
Tires / Rear
80/100-12 Maxxis® Maxxcross SI
DIMENSIONS
L x W x H
63.6 in x 29.9 in x 39.4 in
Seat Height
29.7 in
Wheelbase
44.9 in
Rake (Caster Angle)
26.4°
Trail
2.5 in
Maximum Ground Clearance
10.4 in
Fuel Capacity
0.9 gal
Wet Weight
134 lb
Warranty
30 Day (Limited Factory Warranty)
YZ85
Engine Type
85cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke
47.5mm x 47.8mm
Compression Ratio
8.2~9.6:1
Fuel Delivery
Hitachi Astemo® Keihin PWK28 carburetor
Transmission
6-speed; multiplate wet clutch
Final Drive
Chain
CHASSIS
Suspension / Front
KYB® inverted fork; fully adjustable, 10.8-in travel
Suspension / Rear
KYB® single shock; fully adjustable, 11.1-in travel
Brakes / Front
Hydraulic disc, 220mm
Brakes / Rear
Hydraulic disc, 190mm
Tires / Front
70/100-17 Dunlop® Geomax MX3SF
Tires / Rear
90/100-14 Dunlop® Geomax MX3S
DIMENSIONS
L x W x H
71.7 in x 29.9 in x 44.7 in
Seat Height
33.1 in
Wheelbase
49.4 in
Rake (Caster Angle)
26.3°
Trail
3.5 in
Maximum Ground Clearance
12.6 in
Fuel Capacity
1.3 gal
Wet Weight
161 lb
Warranty
30 Day (Limited Factory Warranty)
YZ250X
Engine Type
249cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke
66.4mm × 72.0mm
Compression Ratio
7.9~9.4:1
Fuel Delivery
Hitachi Astemo® Keihin PWK38S
Transmission
Constant-mesh 5-speed; multiplate wet clutch
Final Drive
Chain
CHASSIS
Suspension / Front
KYB® Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel
Suspension / Rear
KYB® single shock; fully adjustable, 12.4-in travel
Brakes / Front
Hydraulic disc, 270mm
Brakes / Rear
Hydraulic disc, 240mm
Tires / Front
80/100-21 Dunlop® Geomax MX33F
Tires / Rear
110/100-18 Dunlop® Geomax MX33
DIMENSIONS
L x W x H 86.0 in x 32.5 in x 50.8 in
Seat Height 38.4 in
Wheelbase 58.5 in
Rake (Caster Angle) 27.7°
Trail 4.8 in
Maximum Ground Clearance 14.2 in
Fuel Capacity 1.8 gal
Wet Weight 229 lb
Warranty
30 Day (Limited Factory Warranty)