Table Of Contents - KTM 50 SX PRO JUNIOR LC 2004 Owner's Manual

IMPORTANT INFORMATION FOR PARENTS ABOUT SAFE
DRIVING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . .6
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Engine typ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
OPERATION INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . .6
Throttle grip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Short circuit button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Fuel tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Choke (Dell'Orto carburetor PHVA 14 DS) . . . . . . . . . . . .7
Choke (Dell'Orto carburetor PHBG 19 BS) . . . . . . . . . . . . .7
Kickstarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Foot brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Side stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Plugin - Stand (SENIOR LC) . . . . . . . . . . . . . . . . . . . . . . . .8
Rebound damping function of the shock absorber . . . . . . .8
GENERAL TIPS AND WARNINGS FOR STARTING THE
MOTORCYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Instructions for the first ride . . . . . . . . . . . . . . . . . . . . . . .10
Running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
DRIVING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .11
What you should check before each start
Starting when the engine is cold . . . . . . . . . . . . . . . . . . .12
Starting when the engine is warm . . . . . . . . . . . . . . . . . .12
What to do when the engine is "flooded" . . . . . . . . . . . .12
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Refueling, fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
PERIODIC MAINTENANCE SCHEDULE 2004 . . . . . . . . . . . .14
MAINTENANCE WORK ON CHASSIS AND ENGINE . . . . . . .16
Removing the seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Checking and adjusting the steering head bearing (JUNIOR LC) . . . . .16
Checking and adjusting the steering head bearing (SENIOR LC) . . . . .17
How to change the handlebar position
Basic suspension setup for the weight of the driver . . . . .18
To determine the sag of the shock absorber . . . . . . . . . . .18
To determine the sag of the telescopic fork . . . . . . . . . . .18

TABLE OF CONTENTS

Page
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TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
TECHNICAL DATA - ENGINE 50 LC 2004 . . . . . . . . . . . . . .34
. . . . . . . . . . . . . .17
TECHNICAL SPECIFICATIONS - CHASSIS 50 LC 2004 . . . . . . .35
HEAD WORD INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Telescopic fork maintenance . . . . . . . . . . . . . . . . . . . . . .19
Changing the telescopic fork oil . . . . . . . . . . . . . . . . . . . .19
Cleaning the dust scrabbers of the telescopic fork . . . . . .20
Changing spring preloading of the shock absorber . . . . . .20
Check chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Correct chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
General information about KTM disc brakes
Setting the basic position and play of the hand brake lever 21
Checking the brake fluid level/ refilling . . . . . . . . . . . . . .22
Checking front brake pads . . . . . . . . . . . . . . . . . . . . . . . .22
Replacing the front brake pads
Changing the basic position of the foot brake lever (Junior LC) .23
Adjusting the control cable on the rear wheel (Junior LC) 23
Checking the rear brake linings for wear (Junior LC) . . . .23
Drum brake maintenance (Junior LC) . . . . . . . . . . . . . . . .23
Changing the basic position of the brake lever (SeniorLC) 23
Checking the rear brake fluid level (Senior LC) . . . . . . . . .24
Refilling the rear brake fluid reservoir (Senior LC) . . . . . . .24
Checking rear brake pads (Senior LC)
Replacing the rear brake pads (Senior LC) . . . . . . . . . . . .25
Removing and mounting the front wheel . . . . . . . . . . . . .26
Removing and mounting the rear wheel . . . . . . . . . . . . .26
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Checking spoke tension . . . . . . . . . . . . . . . . . . . . . . . . . .27
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Checking coolant level . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Cleaning the air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Changing the seat height . . . . . . . . . . . . . . . . . . . . . . . . .29
Adjusting the throttle cable . . . . . . . . . . . . . . . . . . . . . . .29
Adjusting the idle speed (Dell'Orto PHVA 14 DS) . . . . . .29
Adjusting the idle speed (Dell'Orto PHBG 19 BS) . . . . . . .29
Checking the gear oil level . . . . . . . . . . . . . . . . . . . . . . . .30
Changing gear oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
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