2001 YAMAHA YZF-R1 cooling

4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
ITEM CHECKS PAGE
Fuel• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.3-12
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.6-9
Coolant• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.6-12–6-13
Front brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-24–6-26
Rear brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.6-23–6-26
Clutch• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.6-22–6-23
Throttle grip• Make sure that operation is smooth.
• Lubricate throttle grip, housing and cables if necessary.
• Check free play.
• If necessary, have Yamaha dealer make adjustment.6-18, 6-29
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
EAU03541
NOTE:@l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
@25
*Cooling system• Check coolant level and vehicle for coolant leakage.ÖÖÖÖ Ö
• Change. Every 3 years
26*Front and rear brake
switches• Check operation.ÖÖÖÖÖ Ö
27 Moving parts and cables• Lubricate.ÖÖÖÖ Ö
28*Air induction system• Check the air cut valve and reed valve for damage.
• Replace the entire air induction system if necessary.ÖÖÖÖ Ö
29*Muffler and exhaust pipe• Check the screw clamp for looseness.ÖÖÖÖ
30*Lights, signals and
switches• Check operation.
• Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6 7. Remove the coolant drain bolt to
drain the cooling system.8. Loosen the radiator hose clamp
screw located at the left side of the
engine, and then pull off the hose
to drain the radiator.
9. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
10. Install the coolant drain bolt, and
then tighten it to the specified
torque.
NOTE:@ Check the washer for damage and re-
place it if necessary. @
11. Connect the radiator hose, and
then tighten the clamp screw.
12. Pour the specified amount of rec-
ommended coolant into the radia-
tor and reservoir.
1. Coolant drain bolt
1. Screw clamp
Tightening torque:
Coolant drain bolt:
7 Nm (0.7 m·kg)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
2.55 L
Coolant reservoir capacity:
0.45 L
E_5jj.book Page 14 Friday, September 8, 2000 3:33 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EC000080
CAUTION:@ l
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
l
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
l
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
@13. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.14. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.
15. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
16. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
17. Install the cowlings and the panel.
EAU03162
Cleaning the air filter element The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the rider seat. (See page
3-14 for rider seat removal and in-
stallation procedures.)
2. Remove the bolt at the front of the
fuel tank and loosen the bolt at the
rear.1. Bolt (front)
2. Bolt (rear)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-44
6 Engine overheating
EW000070
WARNING
@ l
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
l
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
@NOTE:@ If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible. @
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
E_5jj.book Page 44 Friday, September 8, 2000 3:33 PM

SPECIFICATIONS
8-2
8
Cooling system capacity
(total amount)
2.55 L
Air filterDry type element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 18 L
Fuel reserve amount 3.8 L
Carburetor
Manufacturer MIKUNI
Model ´ quantity BDSR40 ´ 4
Spark plug
Manufacturer/model NGK / CR9E or
DENSO / U27ESR-N
Gap 0.7–0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 1.581
Secondary reduction system Chain drive
Secondary reduction ratio 2.688
Number of drive chain
sprocket teeth (rear/front) 16/43
Transmission type Constant-mesh 6-speed
Operation Left footGear ratio
1st 2.500
2nd 1.842
3rd 1.500
4th 1.333
5th 1.200
6th 1.115
Chassis
Frame type Diamond
Caster angle 24°
Trail 92 mm
Tires
Front
Type Tubeless
Size 120/70 ZR17 (58 W)
Manufacturer/
model Metzeler / MEZ3Y Front
Dunlop / D207FQ
Rear
Type Tubeless
Size 190/50 ZR17 (73 W)
Manufacturer/
model Metzeler / MEZ3Y
Dunlop / D207N
E_5jj.book Page 2 Friday, September 8, 2000 3:33 PM