Yamaha YZ250F User Manual

CRANKSHAFT ASSEMBLY AND BALANCER SHAFT
5-66
EAS1SM5285
CRANKSHAFT ASSEMBLY AND BALANCER SHAFT
Removing the crankshaft assembly and balancer shaft
Order Part name Q’ty Remarks
Crankcase
Separate.
Refer to “CRANKCASE” on page 5-61.
Transmission Refer to “TRANSMISSION” on page 5-69.
1 Balancer shaft 1
2 Crankshaft assembly 1
For installation, reverse the removal proce-
dure.
M
M
1
2

Yamaha YZ250F Specifications

General

Displacement	250cc
Bore x Stroke	77.0 mm x 53.6 mm
Final Drive	Chain
Suspension / Rear	KYB® single shock; fully adjustable, 12.5-in travel
Brakes / Front	Hydraulic single disc brake, 270mm
Brakes / Rear	Hydraulic single disc brake, 240mm
Fuel Capacity	1.6 gal
Engine Type	Liquid-cooled, DOHC, 4-stroke
Fuel Delivery	Fuel injection
Ignition	TCI
Transmission	5-speed; multiplate wet clutch
Suspension / Front	KYB® Speed-Sensitive System inverted fork; fully adjustable, 12.2-in travel
Tires / Front	80/100-21