Hydraulic Unit Operation Tests - Yamaha FZ8NA Service Manual
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Also See for FZ8NA:
- Owner's manual (108 pages) ,
- Owner's manual (108 pages) ,
- Owner's manual (108 pages)
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Recommended fluid
DOT 4
EWA13090
WARNING
• Use only the designated brake fluid.
Other brake fluids may cause the rubber
seals to deteriorate, causing leakage and
poor brake performance.
• Refill with the same type of brake fluid
that is already in the system. Mixing brake
fluids may result in a harmful chemical
reaction, leading to poor brake perfor-
mance.
• When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor
lock.
ECA13540
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
7. Bleed:
• Brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-16.
8. Check the operation of the hydraulic unit
according to the brake lever and the brake
pedal response. (Refer to "HYDRAULIC
UNIT OPERATION TESTS" on page 4-60.)
ECA14770
Always check the operation of the hydrau-
lic unit according to the brake lever and the
brake pedal response.
9. Delete the fault codes. (Refer to "[D-1]
DELETING THE FAULT CODES" on page
8-172.)
10. Perform a trial run. (Refer to "TRIAL RUN"
on page 4-63.)
EAS22800
HYDRAULIC UNIT OPERATION TESTS
The reaction-force pulsating action generated
in the brake lever and brake pedal when the
ABS is activated can be tested when the vehi-
cle is stopped.
The hydraulic unit operation can be tested
using the following two methods.
ABS (ANTI-LOCK BRAKE SYSTEM)
• Hydraulic unit operation test 1: this test
checks the function of the ABS after the sys-
tem was disassembled, adjusted, or ser-
viced.
• Hydraulic unit operation test 2: this test gen-
erates the same reaction-force pulsating
action that is generated in the brake lever
and brake pedal when the ABS is activated.
Hydraulic unit operation test 1
EWA13120
WARNING
Securely support the vehicle so that there
is no danger of it falling over.
1. Place the vehicle on the sidestand.
2. Turn the main switch to "OFF".
3. Remove:
• Passenger seat
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
4. Check:
• Battery voltage
Lower than 12.8 V → Charge or replace
the battery.
Battery voltage
TIP
• If the battery voltage is lower than 12.8 V,
charge the battery, and then perform hydrau-
lic unit operation test 1.
• If the battery voltage is lower than 10 V, the
ABS warning light comes on and the ABS
does not operate.
5. Connect the test coupler adapter "1" to the
ABS test coupler "2".
Test coupler adapter
4-60
Higher than 12.8 V
90890-03149
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