Yamaha YZ450FA Automobile User Manual


 
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CHASSIS
2. Inspect:
• Rear brake pad insulator "1"
Damage Replace.
CHECKING THE BRAKE FLUID LEVEL
1. Place the brake master cylinder so that its
top is in a horizontal position.
2. Inspect:
•Brake fluid level
Fluid at lower level Fill up.
Use only designated quality brake fluid to
avoid poor brake performance.
• Refill with same type and brand of brake
fluid; mixing fluids could result in poor
brake performance.
• Be sure that water or other contaminants
do not enter master cylinder when refill-
ing.
Clean up spilled fluid immediately to avoid
erosion of painted surfaces or plastic
parts.
a. Lower level
A. Front
B. Rear
CHECKING THE SPROCKET
1. Inspect:
• Sprocket teeth "a"
Excessive wear Replace.
Replace the drive sprocket, rear wheel sprock-
et and drive chain as a set.
CHECKING THE DRIVE CHAIN
1. Measure:
• Drive chain length (15 links) "a"
Out of specification Replace.
While measuring the drive chain length, push
down on the drive chain to increase its ten-
sion.
Measure the length between drive chain roller
"1" and "16" as shown.
Perform this measurement at two or three dif-
ferent places.
Recommended brake fluid:
DOT #4
Drive chain length (15 links):
<Limit>: 242.9 mm (9.563 in)