2001 YAMAHA YZF-R1 Carburetor

6
PERIODIC MAINTENANCE AND MINOR REPAIR
Owner’s tool kit ..................................................... 6-1
Periodic maintenance and lubrication chart ......... 6-2
Removing and installing cowlings and panels ..... 6-5
Checking the spark plugs .................................... 6-7
Engine oil and oil filter cartridge .......................... 6-9
Coolant .............................................................. 6-12
Cleaning the air filter element ............................ 6-15
Adjusting the carburetors ................................... 6-17
Adjusting the engine idling speed ...................... 6-18
Adjusting the throttle cable free play .................. 6-18
Adjusting the valve clearance ............................ 6-19
Tires .................................................................... 6-19
Wheels ................................................................ 6-22
Adjusting the clutch lever free play .................... 6-22
Adjusting the brake pedal position ..................... 6-23
Adjusting the rear brake light switch .................. 6-24
Checking the front and rear brake pads ............. 6-24
Checking the brake fluid level ............................ 6-25
Changing the brake fluid .................................... 6-26
Drive chain slack................................................. 6-27
Lubricating the drive chain ................................. 6-28Checking and lubricating the cables ................. 6-29
Checking and lubricating the throttle grip and
cable ............................................................... 6-29
Checking and lubricating the brake and
clutch levers .................................................... 6-30
Lubricating the brake pedal ............................... 6-30
Checking and lubricating the sidestand ............ 6-30
Lubricating the rear suspension ........................ 6-31
Checking the front fork ...................................... 6-31
Checking the steering ....................................... 6-32
Checking the wheel bearings ............................ 6-32
Battery ............................................................... 6-33
Replacing the fuses .......................................... 6-34
Replacing the headlight bulb ............................. 6-35
Replacing the tail/brake light bulb ..................... 6-37
Replacing a turn signal light bulb ...................... 6-37
Supporting the motorcycle ................................ 6-38
Front wheel ........................................................ 6-39
Rear wheel ........................................................ 6-41
Troubleshooting .................................................. 6-42
Troubleshooting charts ....................................... 6-43
E_5jj.book Page 1 Friday, September 8, 2000 3:33 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
10
*Wheels• Check runout and for damage.ÖÖÖÖ
11*Tires• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.ÖÖÖÖ
12*Wheel bearings• Check bearing for looseness or damage.ÖÖÖÖ
13*Swingarm• Check operation and for excessive play.ÖÖÖÖ
• Lubricate with lithium-soap-based grease. Every 50,000 km
14 Drive chain• Check chain slack.
• Make sure that the rear wheel is properly aligned.
• Clean and lubricate.Every 1,000 km and after washing
the motorcycle or riding in the rain.
15*Steering bearings• Check bearing play and steering for roughness.ÖÖÖÖÖ
• Lubricate with lithium-soap-based grease. Every 20,000 km
16*Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.ÖÖÖÖ Ö
17 Sidestand• Check operation.
• Lubricate.ÖÖÖÖ Ö
18*Sidestand switch• Check operation.ÖÖÖÖÖ Ö
19*Front fork• Check operation and for oil leakage.ÖÖÖÖ
20*Rear shock absorber
assembly• Check operation and shock absorber for oil leakage.ÖÖÖÖ
21*Rear suspension relay
arm and connecting arm
pivoting points• Check operation.ÖÖÖÖ
22*Carburetors• Check starter (choke) operation.
• Adjust engine idling speed and synchronization.ÖÖÖÖÖ Ö
23 Engine oil• Change.ÖÖÖÖÖ Ö
24 Engine oil filter cartridge•Replace.ÖÖÖ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
E_5jj.book Page 3 Friday, September 8, 2000 3:33 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EC000082
CAUTION:@ l
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
l
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
@8. Install the air filter case cover by
installing the screws and bolt.
9. Place the fuel tank in the original
position, and then install the bolt at
the front and tighten the bolt at the
rear.
EW000072
WARNING
@ l
Before installing the fuel tank,
make sure that the fuel hoses
are not damaged. If any fuel
hose is damaged, do not start
the engine but have a Yamaha
dealer replace the hose, other-
wise fuel may leak.
l
Make sure that the fuel hoses
are properly connected and
routed, and not pinched.
@
EAU00630
Adjusting the carburetors The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in
the following section, however, may be
serviced by the owner as part of routine
maintenance.
EC000095
CAUTION:@ The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine. @
E_5jj.book Page 17 Friday, September 8, 2000 3:33 PM

MOTORCYCLE CARE AND STORAGE
7-4
7
ECA00013
CAUTION:@ l
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
l
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
l
Avoid using abrasive polishing
compounds as they will wear
away the paint.
@NOTE:@ Consult a Yamaha dealer for advice on
what products to use. @
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA00014
CAUTION:@ l
Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.
l
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
@
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. For motorcycles equipped with a
fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.
3. Drain the carburetor float cham-
bers by loosening the drain bolts;
this will prevent fuel deposits from
building up. Pour the drained fuel
into the fuel tank.
4. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to pro-
tect the cylinders, piston rings, etc.
from corrosion.
E_5jj.book Page 4 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

INDEXAAir filter element, cleaning ...................... 6-15
Anti-theft alarm (optional) .........................3-8BBattery ................................................... 6-33
Brake and clutch levers, checking and
lubricating ............................................ 6-30
Brake fluid, changing ............................. 6-26
Brake fluid level, checking...................... 6-25
Brake lever............................................. 3-11
Brake light switch (rear), adjusting ......... 6-24
Brake pads, checking............................. 6-24
Brake pedal............................................ 3-11
Brake pedal, lubricating.......................... 6-30
Brake pedal position, adjusting .............. 6-23CCables, checking and lubricating............ 6-29
Carburetors, adjusting............................ 6-17
Care.........................................................7-1
Clutch lever ............................................ 3-10
Clutch lever free play, adjusting ............. 6-22
Conversion table ......................................8-5
Coolant .................................................. 6-12
Changing .......................................... 6-13
Checking .......................................... 6-12
Coolant temperature warning light............3-3
Cowlings and panels, removing and
installing ................................................6-5DDimmer switch .........................................3-9
Drive chain, lubricating ........................... 6-28
Drive chain slack ................................... 6-27
Adjusting .......................................... 6-27
Checking .......................................... 6-27EEngine break-in ....................................... 5-4
Engine oil and oil filter cartridge ............... 6-9
Engine stop switch................................... 3-9
EXUP system ........................................ 3-22FFront and rear suspension settings ........ 3-21
Front fork, adjusting ............................... 3-16
Front fork, checking ............................... 6-31
Fuel ....................................................... 3-12
Fuel consumption, tips for reducing ......... 5-4
Fuel level warning light ............................ 3-2
Fuel tank breather hose ......................... 3-13
Fuel tank cap ......................................... 3-11
Fuses, replacing .................................... 6-34HHandlebar switches ................................. 3-9
Headlight bulb, replacing ....................... 6-35
Helmet holders ...................................... 3-15
High beam indicator light ......................... 3-2
Horn switch ............................................. 3-9IIdentification numbers ............................. 9-1
Idling speed, adjusting ........................... 6-18
Ignition circuit cut-off system.................. 3-23
Indicator and warning lights ..................... 3-2
KKey identification number .........................9-1LLight switch ..............................................3-9
Luggage strap holders ...........................3-22MMain switch/steering lock .........................3-1
Model label ..............................................9-2NNeutral indicator light ...............................3-2OOil level warning light ...............................3-3PParking.....................................................5-5
Part locations ...........................................2-1
Pass switch ..............................................3-9
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list ............................4-1SSafety information ....................................1-1
Seats .....................................................3-14
Passenger seat .................................. 3-14
Rider seat .........................................3-14
Self-diagnosis devices .............................3-7
Shifting .....................................................5-3
Shift pedal ..............................................3-10
Shift points (for Switzerland only) .............5-4
Shock absorber assembly, adjusting ......3-18
Sidestand ...............................................3-23
E_5jj.book Page 1 Friday, September 8, 2000 3:33 PM