KTM 640 LC4R Owner'S Handbook Manual Download Page 28

Adjusting the choke cable*

At the choke cable, there must always exist a play of approx. 2 mm (0.1 in).
To check this, push choke lever fully forward and pull protective cover 

1

from the adjuster piece 

2

. Now, it must be possible to lift the outer 

covering of the cable by approx. 2 mm from the adjuster piece until feeling
a resistance. If necessary, loosen counter nut and readjust play by turning
the adjuster piece. Tighten counter nut, and slide on protective cover.

Adjusting the clutch cable

When the engine is cold, the play at the clutch lever should be 1–3 mm
(0.04–0.12 in) (measured at the outer edge).
To adjust the clutch cable turn the adjusting nut 

3

accordingly.

Checking the adjustment of the hand decompression cable*

To check, set piston at compression, so that the valves are closed. While
doing this, slowly operate the kickstarter through its stroke until the clicking
sound (disengaging) of the automatic decompression can be heard. Now
the decompression lever must be operated 25 mm (1 in) until resistance is
felt (the exhaust valves begin to open). To adjust move back the protective
cover 

4

, loosen the counter nut and correct the adjusting screw 

5

accordingly. Tighten counter nut and push back protective cover.

!

CAUTION

!

I

F THERE IS NO PLAY IN THE DECOMPRESSION LEVER

THIS CAN RESULT IN ENGINE

DAMAGE

.

NOTE:
No adjustment need be made to the automatic decompressor.

Engine oil

Only use high-quality oils (Shell Advance Ultra 4) meeting or surpassing the
quality requirements of API classes SF, SG, or SH (for specifications see 
containers). You may use either mineral oils or synthetic oils fulfilling the
above criteria.

!

CAUTION

!

I

NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE ENGINE

.

Checking engine oil level

Allow the engine to run at idle speed for about 4 minutes. Turn off the engine
and place the motorcycle on a flat, level surface (center stand). Wait 5 minu-
tes, unscrew and remove the oil dipstick, and wipe it clean with a cloth.

SCREW THE DIPSTICK IN ALL THE WAY AND REMOVE IT AGAIN.

The oil level should be between the two marks on the dipstick, however, it
must never rise above the MAX mark. Otherwise, engine oil would get into
the air filter box by way of the engine venting system.
Add engine oil if necessary.

!

CAUTION

!

– I

NSUFFICIENT OIL OR POOR QUALITY OIL RESULTS IN PREMATURE WEAR OF THE

ENGINE

.

– C

HECKING THE ENGINE OIL LEVEL WHEN THE ENGINE IS COLD RESULTS IN A FALSE

READING ON THE OIL DIPSTICK AND THEREFORE AN INCORRECT OIL LEVEL

.

– D

O NOT OVERFILL THE ENGINE CASE

.

– D

O NOT UNDERFILL THE ENGINE CASE

.

Finally, check oil system and engine for leaks.

ENGLISH

26

                   

+

0°C

32°F

15W 40
15W 50
15W 60

10W 40
10W 50
10W 60

API:  SF, SG, SH

TEMPERATURE

25 mm

2 mm

1-3 mm

1

2

3

4

5

MAX

MIN

Summary of Contents for 640 LC4R

Page 1: ...OWNER S HANDBOOK OWNER S HANDBOOK MANUALE D USO MANUALE D USO MANUEL D UTILISA MANUEL D UTILISATION TION MANUAL DE INSTRUCCIONES MANUAL DE INSTRUCCIONES 400 640 LC4 400 640 LC4R SUPERMOTO 99 99 AR AR...

Page 2: ......

Page 3: ...CYCLE IS NOT ROAD SAFE ANYMORE Please insert the series numbers of your motorcycle in the boxes below Frame number Engine number Stamp of dealer TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED Owners a...

Page 4: ...ry out most of the maintenance steps yourself If on the other hand you are not very familiar with motorcycles it might be better to have a professional KTM dealer perform those steps marked described...

Page 5: ...8 Refilling the front brake fluid reservoir 18 Checking the front brake pads 18 Changing the basic position of the foot brake pedal 18 Check the rear brake fluid level 19 Refilling the rear brake flui...

Page 6: ...UTCH WILL THEN OVERHEAT DESTROYING THE CLUTCH LININGS Hand decompression lever The hand decompression lever 2 is only used in two special cases a When the engine stalled It is possible that the starte...

Page 7: ...ing in the same rhythm as the flasher light The green indicator lamp lights up when the gear is switched to idle The blue indicator lamp lights up when the high beam is on The red cooling liquid tempe...

Page 8: ...key turn it 90 counterclockwise then lift off the filler cap To close the tank insert the filler cap turn the ignition key 90 clockwise and take out the key Fuel The LC4 engine needs premium gasoline...

Page 9: ...eft side of the engine The position of the gears is shown in the illustration Neutral or the idle speed is located between first and second gear Kickstarter The kickstarter is mounted on the left side...

Page 10: ...ockwise by as many clicks as are specified for the relevant type of fork 918S757 12 clicks 400 640 LC4 Supermoto 918S776 12 clicks 400 640 LC4R Compression damping of shock absorber With the knob 3 th...

Page 11: ...a habit of performing an overall check of your motorcycle before each start The following checks should be performed 1 CHECK THE OIL LEVEL Insufficient oil results in premature wear and consequently...

Page 12: ...ition is on the headlight is on ignition lock in position If this is not the case the battery is discharged If the lights are on proceed as described in the Trouble shooting section or contact a KTM d...

Page 13: ...E ENGINE WILL OVERSPEED DAMAGING THE VALVES IN ADDITION THE REAR WHEEL BLOCKS SO THAT THE MOTORCYCLE CAN EASILY GET OUT OF CONTROL LONG WHEELIES LEAD TO A DROP IN THE OIL PRESSURE WHICH CAN LEAD TO EN...

Page 14: ...ur motorcycle is standing safely on solid ground Just in case you can also put in a gear Motorcycles that have a side stand are provided with a safety starting system If the side stand has been swung...

Page 15: ...rews at fork legs overpressure Change telescopic fork oil Perform a full maintenance job for the telescopic fork Clean dust scrabber of telescopic fork Check steering head bearing clearance adjust Cle...

Page 16: ...NUTS LET YOUR MOTORCYCLE COOL DOWN BEFORE BEGINNING ANY MAINTENANCE WORK IN ORDER TO AVOID GETTING BURNED DISPOSE OF OIL GREASE FILTERS FUELS CLEANING AGENTS ETC ACCORDING TO YOUR LOCAL REGULATIONS U...

Page 17: ...r the steering head bearings should be greased Changing the spring preload of the shock absorber KTM sets the shock absorber for a driver only weighing approximately 75 kg 165 lb If you want to take a...

Page 18: ...EAR AND EVEN CHAIN BREAKAGE TOO MUCH SLACK IN THE CHAIN ON THE OTHER HAND CAN RESULT IN THE CHAIN JUMPING OFF THE CHAIN WHEELS IF THIS HAPPENS THE CHAIN COULD ALSO BLOCK THE REAR WHEEL OR DAMAGE THE E...

Page 19: ...e greater wear on the brake discs BRAKE FLUID RESERVOIRS The brake fluid reservoirs on the front and rear wheel brakes have been designed in such a way that even if the brake pads are worn it is not n...

Page 20: ...N T LET BRAKE FLUID GET IN CONTACT WITH PAINT IT IS AN EFFECTIVE PAINT REMOVER USE ONLY CLEAN BRAKE FLUID TAKEN FROM A TIGHTLY SEALED CONTAINER Checking the front brake pads The brake pads can be insp...

Page 21: ...the screw and fix the brake fluid reservoir to the frame always making sure to prevent kinks in the connecting hose WARNING NEVER USE DOT5 BRAKE FLUID IT IS BASED ON SILICONE OIL AND OF A PURPLE COLO...

Page 22: ...ALER AS SOON AS POSSIBLE A LOOSE AXLE MAY LEAD TO AN UNSTABLE DRIVING BEHAVIOR OF YOUR MOTORCYCLE AFTER MOUNTING THE FRONT WHEEL KEEP OPERATING THE HAND BRAKE UNTIL THE PRESSURE POINT RETURNS IT IS VE...

Page 23: ...tire Refer to the specific regulations in your country for minimum tire tread requirements We recommend replacing tires at the latest when the tread is down to 2 mm Tire pressure should be checked reg...

Page 24: ...E DO NOT REMOVE THE LOCKING BAR 2 NEVER DISCONNECT THE BATTERY WHILE THE ENGINE IS RUNNING THIS WILL DESTROY THE RECTIFIER REGULATOR BATTERY STORAGE When preparing the motorcycle for a longer period o...

Page 25: ...UMSTANCES IS A STRONGER FUSE ALLOWED TO BE SET IN OR A FUSE ALLOWED TO BE REPAIRED AN INEXPERT TREATMENT COULD DAMAGE THE WHOLE ELECTRICAL INSTALLATION Exchanging the headlight lamp Remove the headlig...

Page 26: ...This fan will provide additional air circulation through the radiator thereby preventing the cooling system from overheating CAUTION IF THE RED COOLING LIQUID TEMPERATURE WARNING LAMP 4 LIGHTS UP THIS...

Page 27: ...ning in counterclockwise direction will reduce the idling speed Normal idling speed 1400 1500 rpm Adjusting the throttle cable 400 LC4 There must always be a 3 5 mm 0 1 0 2 in play in the throttle cab...

Page 28: ...E DECOMPRESSION LEVER THIS CAN RESULT IN ENGINE DAMAGE NOTE No adjustment need be made to the automatic decompressor Engine oil Only use high quality oils Shell Advance Ultra 4 meeting or surpassing t...

Page 29: ...e the guarantee will become void The engine oil change is to be carried out when the engine is still warm WARNING AN ENGINE HAVING BEEN RUN WARM AND THE ENGINE OIL IN IT IS VERY HOT DO NOT BURN YOURSE...

Page 30: ...ll be able to unscrew it the rest of the way with your bare hand Let engine oil flow out of the front pipe of the frame Clean sealing surfaces on the front pipe 2 fill new fine screen filter with engi...

Page 31: ...itch contact a KTM dealer Replace fuse below the headlight mask Remove seat and replace the main fuse If fuse blows again contact a KTM dealer Contact a KTM dealer Contact a KTM dealer Open fuel tap t...

Page 32: ...e oil too thin viscosity REMEDY Disassemble carburetor and clean jets Have carburetor adjusted Replace spark plug Have ignition system checked Dismount carburetor and check if worn out Replace float n...

Page 33: ...on power consumer hasn t been switched off The battery isn t charged by the generator because REMEDY Remove seat and check connections Have voltage regulator checked Replace fuse below the headlight m...

Page 34: ...tarter 10 times in order to distribute the oil onto the cylinder walls and mount the spark plug Set piston to compression so that the valves will be closed slowly operate the kickstarter until you can...

Page 35: ...ain O Ring 5 8 x 1 4 Battery maintenance free battery 12V 8Ah Steering angle 62 5 63 62 5 Wheel base 1510 10 mm 59 4 0 4 in Seat high 955 mm 37 6 in 935 mm 36 8 in Ground clearance 375 mm 14 8 in 355...

Page 36: ...e lubrication two Eaton oilpumps Engine oil see bellow Engine oil quantity appr 2 1 liters including frame Primary ratio straight geared spur wheels 30 81 teeth Clutch multi disc clutch in oil bath Tr...

Page 37: ...urn 50 1 45 50 55 slide stop 51 mm PHM 38 ND 100197 130 AR 264 50 K 23 2 nd 1 5 turn 50 1 45 50 55 400 LC4 25 kW 400 LC4 31 kW BASIC CARBURETOR SETTING Carburetor Carburetor setting number Main jet Ne...

Page 38: ......

Page 39: ...ANHANG APPENDICE APPENDIX AP NDICE 1...

Page 40: ...ANHANG APPENDICE APPENDIX AP NDICE 2...

Page 41: ...ANHANG APPENDICE APPENDIX AP NDICE 3...

Page 42: ...ANHANG APPENDICE APPENDIX AP NDICE 4...

Page 43: ...L E A G A 5230 Mattighofen Postfach 91 Austria I n t e r n e t h t t p w w w k t m c o a t FN 102019 d Landesgericht Ried im Innkreis 3 205 60 400 640 LC4 400 640 LC4 R R Super Super moto moto 99 99 A...

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