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Yamaha yz250 2015 User Manual

Yamaha yz250 2015
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5-12
FRONT BRAKE AND REAR BRAKE
2. Install:
Brake caliper "1"
Bolt (brake caliper) "2"
3. Tighten:
Pad pin "3"
4. Install:
Pad pin plug "4"
INSTALLING THE REAR BRAKE
CALIPER
1. Install:
Pad support "1"
Brake pad "2"
Pad pin "3"
Install the brake pads with their pro-
jections "a" into the brake caliper re-
cesses "b".
Temporarily tighten the pad pin at
this point.
2. Install:
Brake disc cover "1"
Bolt (brake disc cover) "2"
3. Install:
Brake caliper "1"
Rear wheel "2"
Refer to "FRONT WHEEL AND
REAR WHEEL" section.
4. Tighten:
Pad pin "3"
5. Install:
Pad pin plug "4"
INSTALLING THE BRAKE
MASTER CYLINDER KIT
1. Clean:
Brake master cylinder
Brake master cylinder kit
Clean them with brake fluid.
2. Install:
Brake master cylinder cup (prima-
ry) "1"
Brake master cylinder cup (sec-
ondary) "2"
To brake master cylinder piston
"3".
Apply the brake fluid on the brake
master cylinder cup.
After installing, cylinder cup
should be installed as shown di-
rection. Wrong installation cause
improper brake performance.
3. Install:
Spring "1"
To brake master cylinder piston
"2".
Install the spring at the smaller diam-
eter side.
4. Install:
Brake master cylinder kit "1"
Washer (front brake) "2"
Push rod (rear brake) "2"
Circlip "3"
Brake master cylinder boot "4"
Push rod (front brake) "5"
To brake master cylinder.
Apply the brake fluid on the brake
master cylinder kit.
Apply the silicone grease on the tip
of the push rod.
When installing the circlip, use a
long nose circlip pliers.
A. Front
B. Rear
Bolt (brake caliper):
28 Nm (2.8 m•kg, 20
ft•lb)
Pad pin:
18 Nm (1.8 m•kg, 13
ft•lb)
Pad pin plug:
3 Nm (0.3 m•kg, 2.2
ft•lb)
Bolt (brake disc cover):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Pad pin:
18 Nm (1.8 m•kg, 13
ft•lb)
Pad pin plug:
3 Nm (0.3 m•kg, 2.2
ft•lb)

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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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