2000 YAMAHA YZF-R6 maintenance

PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6
EC000080
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use distilled
water if you can’t get soft water. @NOTE:@ If water is added, have a Yamaha deal-
er check the antifreeze content of the
coolant as soon as possible.
The radiator fan operation is complete-
ly automatic. It is switched on or off ac-
cording to the coolant temperature in
the radiator. @5. If your motorcycle overheats, see
page 6-42 for details.
EAU01612
Changing the coolant1. Remove panel C, cowling A and
cowling B. (See page 6-6 for re-
moval and installation proce-
dures.)
2. Place a container under the en-
gine.
3. Remove the radiator cap.4. Remove the water pump drain bolt
and drain the coolant from the wa-
ter pump housing.
5. Disconnect the radiator hose by
loosening the clamp and drain the
coolant completely.
6. Thoroughly flush the cooling sys-
tem with clean tap water.1. Radiator cap
1. Water pump drain bolt
2. Clamp bolt
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
67. Connect the radiator hose and
tighten the clamp.
8. Retighten the drain bolt to the
specified torque. If the gasket is
damaged, replace it.
9. Remove the reservoir tank cover
by removing the bolts.10. Remove the reservoir tank by re-
moving the bolts.
11. Remove the reservoir tank cap
and turn the tank upside down to
empty it.
12. Install the reservoir tank.
13. Fill the reservoir tank with coolant
up to the maximum level, then in-
stall the cap and cover.
14. Pour the recommended coolant
into the radiator until it is full. Tightening torque:
Drain bolt:
12 Nm (1.2 m·kg)
1. Bolt (´ 2)
1. Bolt (´ 2)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6
EC000080
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use distilled
water if you can’t get soft water. @15. Install the radiator cap.
16. Run the engine several minutes to
recheck the coolant level in the ra-
diator. If it is low, fill with more
coolant until it reaches the top of
the radiator.17. Check for coolant leakage.
NOTE:@ If you find any leaks, ask a Yamaha
dealer to inspect. @18. Install the panel and the cowling. Recommended anti-freeze:
High quality ethylene glycol
anti-freeze containing corrosion
inhibitors for aluminum engines.
Antifreeze and water mix ratio:
1:1
Total amount:
2.15 L
Reservoir tank capacity:
0.44 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EAU01821*
Air filterThe air filter element’s condition should
be checked at the specified intervals. It
should be checked more frequently if
you are riding in unusually wet or dusty
areas.
1. Remove the rider seat. (See page
3-15 for seat removal and installa-
tion procedures.)
2. Remove the bolts holding the fuel
tank.
3. Lift the fuel tank upward.4. Set the fuel cock to “OFF”.
5. Disconnect the fuel sender lead
coupler.
6. Disconnect the hoses.
NOTE:@ Before removing the hoses, mark them
to ensure that they will be reinstalled in
their correct positions. @
7. Tilt the front of the fuel tank back
away from the air filter case. Be
sure to support it as shown.
1. Bolt (´ 2)
1. Fuel cock
2. Hose (´ 2)
3. Fuel sender lead coupler
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6 8. Remove the screws holding the air
filter case cover.9. Remove the air filter element.10. Check the air filter element’s con-
dition. If it is damaged or exces-
sively dusty, it should be replaced.
1. Screw (´ 6)
1. Air filter element
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
6
EC000082*
CAUTION:@ l
Make sure the air filter element
is properly seated in the air filter
case.
l
The engine should never be run
without the air filter installed.
Excessive piston and/or cylin-
der wear may result.
@11. Reverse the removal procedure
for installation.
EW000131
WARNING
@ Make sure that the fuel hoses and
vacuum hose are properly connect-
ed, in place and not pinched. If a
hose is damaged, be sure to replace
it. @
EAU01335
Air intake ductCheck that the screen of the intake
duct is not blocked. Clean the screen if
necessary.1. Air intake duct
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU00630
Carburetor adjustmentThe carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Most adjustments
should be left to a Yamaha dealer who
has the professional knowledge and
experience to do so. However, the idle
speed may be adjusted by the owner
as part of routine maintenance.
EC000095
CAUTION:@ The carburetors were set at the
Yamaha factory after many tests. If
they are changed, poor engine per-
formance and damage may result. @
EAU00632
Idle speed adjustment1. Start the engine and warm it up for
a few minutes at approximately
1,000 to 2,000 r/min. Occasionally
rev the engine to 4,000 to
5,000 r/min. The engine is warm
when it quickly responds to the
throttle.
2. Set the idle to the specified engine
speed by adjusting the throttle
stop screw. Turn the screw in di-
rection
a to increase engine
speed and in direction
b to de-
crease engine speed.
NOTE:@ If the specified idle speed cannot be
obtained by performing the above ad-
justment, consult a Yamaha dealer. @
1. Throttle stop screw
Standard idle speed:
1,250 ~ 1,350 r/min
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6
EAU00635
Throttle cable free play
inspectionThere should be a free play of 6 ~
8 mm at the throttle grip. If the free play
is incorrect, ask a Yamaha dealer to
make this adjustment.
EAU00637
Valve clearance adjustmentThe correct valve clearance changes
with use, resulting in improper fuel/air
supply or engine noise. To prevent this,
the valve clearance must be adjusted
regularly. This adjustment however,
should be left to a professional
Yamaha service technician.
EAU00658
TiresTo ensure maximum performance,
long service and safe operation, note
the following:
Tire air pressure
Always check and adjust the tire pres-
sure before operating the motorcycle.
EW000082
WARNING
@ Tire inflation pressure should be
checked and adjusted when the
temperature of the tire equals the
ambient air temperature. Tire infla-
tion pressure must be adjusted ac-
cording to total weight of cargo,
rider, passenger, and accessories
(fairing, saddlebags, etc. if approved
for this model), and vehicle speed. @
a. Free playE_5eb_Periodic.fm Page 21 Thursday, November 18, 1999 4:06 PM