Yamaha yz250 2015 User Manual

4-7
CARBURETOR AND REED VALVE
CARBURETOR AND REED VALVE
REMOVING THE CARBURETOR AND REED VALVE
Order Part name Q'ty Remarks
Fuel tank
Refer to "SEAT, FUEL TANK AND SIDE
COVERS" section.
1 Solenoid valve lead 1 Disconnect the solenoid valve lead.
2 Throttle position sensor lead 1 Disconnect the throttle position sensor lead.
3 Clamp (carburetor joint) 2 Loosen the screw (carburetor joint).
4 Carburetor 1
5 Carburetor joint 1
6 Reed valve assembly 1
7 Stopper (reed valve) 2
8 Reed valve 2
9 Plate (reed valve) 1
10 Nm (1.0 m kg, 7.2 ft lb)
1 Nm (0.1 m kg, 0.7 ft lb)

Yamaha yz250 2015 Specifications

General

Displacement	249cc
Bore x Stroke	66.4mm x 72.0mm
Compression Ratio	8.9~10.6:1
Ignition	CDI
Transmission	5-speed; multiplate wet clutch
Final Drive	Chain
Front Tire	80/100-21
Rear Tire	110/90-19
Wheelbase	58.3 in
Seat Height	39.1 in
Ground Clearance	14.2 in
Fuel Capacity	2.1 gal
Wet Weight	227 lbs
Engine Type	2-stroke
Fuel System	Keihin PWK38S
Front Suspension	KYB Speed-Sensitive System inverted fork; fully adjustable
Rear Suspension	12.4-in travel
Front Brake	Single disc, 250mm
Rear Brake	Hydraulic single disc brake, 245mm
Width	32.5 inches