Yamaha YZ250FX 2019 User Manual

REAR SHOCK ABSORBER ASSEMBLY
4-58
2. Remove:
• Upper bearing “1”
TIP
Remove the bearing by pressing its outer race.
3. Remove:
• Lower bearing “1”
TIP
Remove the bearing by pressing its outer race.
EAM30067
CHECKING THE REAR SHOCK ABSORBER
ASSEMBLY
1. Check:
• Rear shock absorber rod
Bends/damage  Replace the rear shock
absorber assembly.
• Rear shock absorber
Gas leaks/oil leaks  Replace the rear shock
absorber assembly.
• Spring
Damage/wear  Replace.
• Spring guide
Damage/wear  Replace.
• Bearing
Damage/wear  Replace.
• Bolt
Bends/damage/wear  Replace.
EAM30068
CHECKING THE CONNECTING ARM AND
RELAY ARM
1. Check:
• Connecting arm
• Relay arm
Damage/wear  Replace.
2. Check:
• Bearing
• Spacer
Damage/pitting/scratches  Replace the
bearings and spacers as a set.
3. Check:
• Oil seal
Damage/pitting  Replace.
EAM30069
INSTALLING THE RELAY ARM
1. Lubricate:
• Oil seal
• Bearing
• Spacer
• Washer
• Collar
2. Install:
• Bearing “1”
• Washer “2”
• Oil seal “3”
(to relay arm “4”)
3. Install:
• Bearing “1”
• Oil seal “2”
(to connecting arm “3”)
1
Recommended lubricant
Molybdenum disulfide grease
Installed depth “a”
0 mm (0 in)
Installed depth “a”
0 mm (0 in)
New
3
3
4
3
2
2
2
2
a
1
1
1
New

Yamaha YZ250FX 2019 Specifications

General

Displacement	250cc
Bore x Stroke	77.0mm x 53.6mm
Fuel System	Yamaha Fuel Injection (YFI), Keihin® 44mm
Ignition	TCI: Transistor Controlled Ignition
Final Drive	Chain
Front Brake	Hydraulic disc, 270mm
Rear Brake	Hydraulic disc, 245mm
Seat Height	37.6 in
Ground Clearance	12.8 in
Fuel Capacity	2.1 gal
Wet Weight	249 lb
Engine Type	Liquid-cooled DOHC 4-stroke
Transmission	Wide-ratio 6-speed; multiplate wet clutch
Front Suspension	KYB® spring-type fork, fully adjustable
Rear Suspension	KYB® single shock
L x W x H	32.5 in
Front Tire	90/90-21
Rear Tire	110/100-18