2003 YAMAHA YZF-R1 fuel pressure

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
CO-01E
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-15
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-9
CoolantCheck coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.6-13–6-14
Front brakeCheck 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.6-26–6-28
Rear brakeCheck 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.6-25–6-28
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-24–6-25
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-20, 6-31
U5PWE1.book Page 1 Monday, July 8, 2002 10:28 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
10
*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√ √
11*Wheel bearingsCheck bearing for looseness or damage.√√√√
12*SwingarmCheck operation and for excessive play.√√√√
Lubricate with lithium-soap-based grease. Every 50,000 km
13 Drive chainCheck 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
14*Steering bearingsCheck bearing play and steering for roughness.√√√√√
Lubricate with lithium-soap-based grease. Every 20,000 km
15*Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.√√√√ √
16 SidestandCheck operation.
Lubricate.√√√√ √
17*Sidestand switchCheck operation.√√√√√ √
18*Front forkCheck operation and for oil leakage.√√√√
19*Shock absorber
assemblyCheck operation and shock absorber for oil leakage.√√√√
20*Rear suspension relay
arm and connecting arm
pivoting pointsCheck operation.√√√√
21*Electronic fuel injectionAdjust engine idling speed and synchronization.√√√√√ √
22 Engine oilChange.
Check oil level and vehicle for oil leakage.√√√√√ √
23 Engine oil filter cartridgeReplace.√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (×1,000 km)
ANNUAL
CHECK
1 10203040
U5PWE1.book Page 3 Monday, July 8, 2002 10:28 AM

MOTORCYCLE CARE AND STORAGE
7-2
7


Do not use any harsh chemical
products on plastic parts or the
muffler. Be sure to avoid using
cloths or sponges which have
been in contact with strong or
abrasive cleaning products, sol-
vent or thinner, fuel (gasoline),
rust removers or inhibitors,
brake fluid, antifreeze or elec-
trolyte.


Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
storage compartments, electric
components (couplers, connec-
tors, instruments, switches and
lights), breather hoses and
vents.


For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind-
shield. Test the product on a
small hidden part of the wind-
shield to make sure that it does
not leave any marks. If the wind-
shield is scratched, use a quali-
ty plastic polishing compound
after washing.
_After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.After riding in the rain, near the sea or
on salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.NOTE:_ Salt sprayed on roads in the winter may
remain well into spring. _1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.
ECA00012
CAUTION:_ Do not use warm water since it in-
creases the corrosive action of the
salt. _2. After drying the motorcycle, apply
a corrosion protection spray on all
metal, including chrome- and nick-
el-plated, surfaces (except the tita-
nium muffler) to prevent corrosion.
U5PWE1.book Page 2 Monday, July 8, 2002 10:28 AM