PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
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. Open the radiator cap as follows. Wait until the engine has
cooled. Remove the radiator cap stopper by removing the screw. Place a thick rag like a towel over the radiator cap
and slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape.
When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it. @NOTE:@ If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recom-
mended coolant as soon as possible. @
Wait until the
engine has cooled.
Check the coolant level in the
reservoir tank and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and repair the cooling system.
E_4tv_Periodic.fm Page 41 Wednesday, September 1, 1999 11:12 AM
10-INDEXAAir filter ..................................................6-15
Air intake duct ........................................6-17
Air vent hose .......................................... 6-17
Antitheft alarm (optional) .......................... 3-7BBattery ................................................... 6-32
Brake and clutch lever lubrication........... 6-29
Brake and shift pedal lubrication ............ 6-29
Brake fluid replacement ......................... 6-26
Brake light switch adjustment ................. 6-24CCable inspection and lubrication ............ 6-28
Carburetor adjustment ...........................6-17
Care.........................................................7-1
Changing the coolant ............................. 6-13
Checking the front and
rear brake pads ................................... 6-25
Clutch lever .............................................. 3-9
Clutch lever free play adjustment ........... 6-23
Controls/Instruments ................................2-3
Coolant temperature gauge ..................... 3-8
Cooling system ...................................... 6-12
Cowling A and B ......................................6-5
Cowling C ................................................6-7
Cowling and panel removal and
installation .............................................6-5
DDiagnosis device ..................................... 3-7
Dimmer switch ......................................... 3-8
Drive chain lubrication ........................... 6-28
Drive chain slack adjustment ................. 6-27
Drive chain slack check ......................... 6-27EEngine break-in ....................................... 5-5
Engine oil ................................................ 6-9
Engine stop switch................................... 3-9FFront brake lever ................................... 3-10
Front fork adjustment............................. 3-16
Front fork inspection .............................. 6-30
Front wheel installation .......................... 6-36
Front wheel removal .............................. 6-35
Fuel ....................................................... 3-11
Fuel indicator circuit check....................... 3-5
Fuel indicator light ................................... 3-2
Fuel tank breather hose
(for Germany only) .............................. 3-13
Fuel tank cap ......................................... 3-11
Fuse replacement.................................. 6-33GGive safety the right of way ..................... 1-1
HHandlebar switches ..................................3-8
Dimmer switch ....................................3-8
Engine stop switch..............................3-9
Horn switch.........................................3-8
Lights switch .......................................3-9
Pass switch ........................................3-8
Start switch .........................................3-9
Turn signal switch ...............................3-8
Headlight bulb replacement....................6-33
Helmet holder.........................................3-15
High beam indicator light ..........................3-3
Horn switch ..............................................3-8IIdentification number records ...................9-1
Idle speed adjustment ............................6-18
Indicator lights ..........................................3-2
Fuel indicator light...............................3-2
High beam indicator light ....................3-3
Neutral indicator light ..........................3-2
Oil level indicator light .........................3-2
Turn indicator light ..............................3-3
Inspecting the brake fluid level ...............6-25KKey identification number .........................9-1LLeft view...................................................2-1
Lights switch ............................................3-9
Luggage strap holders ...........................3-21
E_4tvIX.fm Page 1 Wednesday, September 1, 1999 11:15 AM
