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Yamaha yz250 2015 User Manual

Yamaha yz250 2015
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5-14
FRONT BRAKE AND REAR BRAKE
2. Install:
Brake hose holder "1"
Bolt (brake hose holder) "2"
Align the top "a" of the brake hose
holder with the paint "b" of the brake
hose.
3. Pass the brake hose through the
cable guide "1".
4. Install:
Copper washer "1"
Brake hose "2"
Union bolt "3"
Always use new copper washers.
Install the brake hose so that its
pipe portion "a" directs as shown
and lightly touches the projection
"b" on the brake master cylinder.
INSTALLING THE REAR BRAKE
HOSE
1. Install:
Copper washer "1"
Brake hose "2"
Union bolt "3"
Always use new copper washers.
Install the brake hose so that its
pipe portion "a" directs as shown
and lightly touches the projection
"b" on the brake caliper.
2. Install:
Brake hose holder "1"
Screw (brake hose holder) "2"
After installing the brake hose
holders, make sure the brake hose
does not contact the spring (rear
shock absorber). If it does, correct
its twist.
FILLING THE BRAKE FLUID
1. Fill:
Brake fluid
Until the fluid level reaches
"LOWER" level line "a".
Use only the designated quality
brake fluid:
otherwise, the rubber seals may
deteriorate, causing leakage and
poor brake performance.
Refill with the same type of brake
fluid;
mixing fluids may result in a
harmful chemical reaction and
lead to poor performance.
Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the flu-
id and may result in vapor lock.
Brake fluid may erode painted sur-
faces or plastic parts. Always
clean up spilled fluid immediately.
A. Front
B. Rear
Bolt (brake hose holder):
8 Nm (0.8 m•kg, 5.8
ft•lb)
Union bolt:
30 Nm (3.0 m•kg, 22
ft•lb)
Union bolt:
30 Nm (3.0 m•kg, 22
ft•lb)
Screw (brake hose hold-
er):
3 Nm (0.3 m•kg, 2.2
ft•lb)
Recommended brake flu-
id:
DOT #4

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Yamaha yz250 2015 Specifications

General IconGeneral
Displacement249cc
Bore x Stroke66.4mm x 72.0mm
Compression Ratio8.9~10.6:1
IgnitionCDI
Transmission5-speed; multiplate wet clutch
Final DriveChain
Front Tire80/100-21
Rear Tire110/90-19
Wheelbase58.3 in
Seat Height39.1 in
Ground Clearance14.2 in
Fuel Capacity2.1 gal
Wet Weight227 lbs
Engine Type2-stroke
Fuel SystemKeihin PWK38S
Front SuspensionKYB Speed-Sensitive System inverted fork; fully adjustable
Rear Suspension12.4-in travel
Front BrakeSingle disc, 250mm
Rear BrakeHydraulic single disc brake, 245mm
Width32.5 inches

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