engine coolant YAMAHA YZF-R1 2002 User Guide

PERIODIC MAINTENANCE AND MINOR REPAIR
6-46
6 Engine overheating
EW000070
WARNING
_

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.


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.
_CT-2AENOTE:_ 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.
U5PWE0.book Page 46 Friday, December 7, 2001 5:14 PM

INDEXAAir filter element, replacing ..................... 6-16
Anti-theft alarm ...................................... 3-11BBattery ................................................... 6-33
Brake and clutch levers,
checking and lubricating ...................... 6-30
Brake fluid, changing ............................. 6-27
Brake fluid level, checking...................... 6-26
Brake lever............................................. 3-13
Brake light switch (rear), adjusting ......... 6-24
Brake pads, checking............................. 6-25
Brake pedal............................................ 3-14
Brake pedal, lubricating.......................... 6-31
Brake pedal position, adjusting .............. 6-24CCables, checking and lubricating............ 6-29
Care.........................................................7-1
Catalytic converter ................................. 3-16
Clutch lever ............................................ 3-13
Clutch lever free play, adjusting ............. 6-23
Conversion table ......................................8-5
Coolant .................................................. 6-12
Changing .......................................... 6-13
Checking .......................................... 6-12
Coolant temperature warning light............3-4
Cowlings and panels,
removing and installing ..........................6-5
DDimmer switch ....................................... 3-11
Drive chain, lubricating .......................... 6-29
Drive chain slack ................................... 6-27
Adjusting .......................................... 6-28
Checking .......................................... 6-27EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge ............... 6-9
Engine speed indicator light..................... 3-4
Engine stop switch................................. 3-12
Engine trouble warning light .................... 3-3
EXUP system ........................................ 3-24FFront fork, adjusting ............................... 3-19
Front fork, checking ............................... 6-31
Fuel ....................................................... 3-15
Fuel consumption, tips for reducing ......... 5-3
Fuel level warning light ............................ 3-2
Fuel tank breather hose ......................... 3-16
Fuel tank cap ......................................... 3-14
Fuses, replacing .................................... 6-35HHandlebar switches ............................... 3-11
Headlight bulb, replacing ....................... 6-36
Helmet holders ...................................... 3-18
High beam indicator light ......................... 3-3
Horn switch ........................................... 3-12
IIdentification numbers ..............................9-1
Idling speed, adjusting ...........................6-18
Ignition circuit cut-off system ..................3-25
Indicator and warning lights......................3-2KKey identification number .........................9-1LLicense plate light bulb, replacing...........6-38
Light switch .............................................. 3-12
Luggage strap holders ...........................3-23MMain switch/steering lock .........................3-1
Model label ..............................................9-2
Multi-function display................................3-6NNeutral indicator light ...............................3-3OOil level warning light ...............................3-3PParking.....................................................5-4
Part locations ...........................................2-1
Pass switch ............................................3-11
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list ............................4-1
U5PWE0.book Page 1 Friday, December 7, 2001 5:14 PM