KTM 450 SX 2009 User manual

OWNER'S MANUAL 2009
450 SX ATV
505 SX ATV
ART. NO. 3211378en

DEAR KTM CUSTOMER 1
DEAR KTM CUSTOMER
Congratulations on your decision to buy a KTM ATV. You are now the owner of a state-of-the-art sports ATV that will give you enormous
pleasure if you service and maintain it accordingly.
We wish you great pleasure riding the vehicle!
Enter the serial numbers of your vehicle below.
Chassis number ( p. 26) Dealer's stamp
Engine number ( p. 27)
Key number ( p. 27)
The owner's manual corresponded to the latest state of this series at the time of printing. Slight deviations resulting from continuing devel-
opment and design can however not be completely excluded.
All specifications are non-binding. KTM Sportmotorcycle AG specifically reserves the right to modify or delete technical specifications,
prices, colors, forms, materials, services, designs, equipment, etc., without prior notice and without specifying reasons, to adapt these to
local conditions, as well as to stop production of a particular model without prior notice. KTM accepts no liability for delivery options, devi-
ations from illustrations and descriptions, as well as printing and other errors. The models portrayed partly contain special equipment that
does not belong to the regular scope of delivery.

DEAR KTM CUSTOMER 2
© 2008 by KTM-Sportmotorcycle AG, Mattighofen Austria
All rights reserved
Reproduction, even in part, is permitted only with the express written permission of the copyright owner.
ISO 9001(12 100 6061)
According to the international quality management standard ISO 9001, KTM uses quality assurance processes that lead to
the maximum possible quality of the products.
Issued by: TÜV Management Service
KTM-Sportmotorcycle AG
5230 Mattighofen, Austria

CONTENTS 3
CONTENTS
MEANS OF REPRESENTATION ............................................... 7
IMPORTANT NOTES............................................................... 8
Overview of labels............................................................. 12
VIEW OF VEHICLE................................................................ 22
View of the vehicle from the left front (example).................. 22
View of the vehicle from the right rear (example) ................. 24
LOCATION OF SERIAL NUMBERS ......................................... 26
Chassis number................................................................ 26
Type label........................................................................ 26
Key number ..................................................................... 27
Engine number................................................................. 27
Shock absorber part number, front ..................................... 28
Shock absorber part number, rear ...................................... 28
CONTROL ELEMENTS .......................................................... 29
Clutch lever ..................................................................... 29
Hot start lever .................................................................. 29
Handbrake lever, parking brake.......................................... 30
Throttle lever.................................................................... 31
Light switch ..................................................................... 31
Light switch ..................................................................... 32
ENG. STOP switch............................................................ 32
ENG. STOP switch............................................................ 33
Electric starter button ....................................................... 33
Electric starter button ....................................................... 34
Ignition switch ................................................................. 34
Indicator lamp overview .................................................... 35
Emergency OFF switch with rip cord................................... 35
Opening filler cap............................................................. 36
Closing filler cap .............................................................. 36
Fuel tap........................................................................... 37
Choke.............................................................................. 38
Shift lever........................................................................ 38
Foot brake pedal .............................................................. 39
TIPS ON PUTTING INTO OPERATION .................................... 40
Advice on first use............................................................ 40
Running in the engine....................................................... 43
RIDING INSTRUCTIONS ....................................................... 44
Checks before putting into operation .................................. 44
Starting ........................................................................... 45
Starting up ...................................................................... 47
Shifting ........................................................................... 47
Braking ........................................................................... 48
Riding ............................................................................. 49
Riding in bends................................................................ 49
Riding downhill ................................................................ 51
Riding uphill.................................................................... 52
Riding perpendicular to the slope....................................... 53
Turning on slopes ............................................................. 53
Riding through water ........................................................ 55
Switching off the engine ................................................... 55
Stopping, parking ............................................................. 56
Refueling......................................................................... 57
SERVICE SCHEDULE............................................................ 59
Important maintenance work to be carried out by an
authorized KTM workshop. ................................................ 59
Important maintenance work to be carried out by an
authorized KTM workshop. (as additional job)...................... 61
Important checks and maintenance work to be carried out
by the rider...................................................................... 63

CONTENTS 4
MAINTENANCE ON CHASSIS AND ENGINE ........................... 64
Jacking up the vehicle ...................................................... 64
Removing the vehicle from the work stand .......................... 64
Basic information on changing the chassis settings.............. 64
Compression damping of the shock absorber ....................... 65
Front shock absorber - adjusting the high-speed
compression damping ....................................................... 65
Front shock absorber - adjusting the low-speed
compression damping ....................................................... 66
Front shock absorber - adjusting the rebound damping......... 68
Front shock absorber - adjusting the cross over.................... 69
Front shock absorber - adjusting the spring preload ............. 71
Rear shock absorber - adjusting the high speed
compression damping ....................................................... 73
Rear shock absorber - adjusting the low-speed compression
damping .......................................................................... 74
Rear shock absorber - adjusting the rebound damping.......... 75
Rear shock absorber - adjusting the spring preload x......... 76
Removing the rear shock absorber x................................. 78
Installing the rear shock absorber x.................................. 80
Checking the toe x......................................................... 80
Adjusting the toe x......................................................... 83
Checking/adjusting the camber x..................................... 85
Fork offset ....................................................................... 87
Adjusting the fork offset x............................................... 88
Toe width of rear axle........................................................ 88
Adjusting the toe width of the rear axle x.......................... 89
Handlebar position ........................................................... 91
Adjusting the handlebar position x................................... 92
Checking play in gas Bowden cable .................................... 94
Adjusting play in gas Bowden cable.................................... 95
Checking chain dirt .......................................................... 96
Cleaning the chain............................................................ 96
Checking the chain tension ............................................... 97
Checking rear sprocket / engine sprocket for wear ................ 98
Checking chain wear......................................................... 98
Adjusting chain tension................................................... 100
Greasing the rear wheel eccentric element ........................ 102
Checking the brake discs................................................. 102
Checking the free play of the hand brake lever .................. 103
Adjusting basic position of handbrake lever....................... 104
Checking front brake fluid level........................................ 105
Adding front brake fluid x............................................. 105
Checking the front brake linings....................................... 107
Removing front brake linings x...................................... 108
Installing the front brake linings x................................. 109
Changing the front brake linings x................................. 110
Checking free play of foot brake lever ............................... 112
Adjusting basic position of footbrake lever x................... 113
Checking rear brake fluid level......................................... 114
Adding rear brake fluid x.............................................. 115
Checking rear brake linings ............................................. 117
Removing rear brake linings x........................................ 118
Installing the rear brake linings x................................... 119
Changing the rear brake linings x................................... 121
Removing wheel/wheels................................................... 122
Installing the wheel/wheels.............................................. 123
Checking the tire condition.............................................. 125

CONTENTS 5
Checking tire air pressure................................................ 125
Removing the battery...................................................... 126
Installing the battery....................................................... 127
Recharging the battery x............................................... 127
Changing main fuse........................................................ 129
Changing the fuses of individual power-consuming
components ................................................................... 130
Ignition curve plug connection......................................... 133
Changing the ignition curve ............................................. 133
Removing the seat.......................................................... 134
Mounting the seat .......................................................... 134
Removing the radiator spoiler .......................................... 135
Installing the radiator spoiler ........................................... 136
Removing the front cover................................................. 137
Installing the front cover ................................................. 138
Removing the front trim .................................................. 138
Installing the front trim................................................... 140
Removing the rear fender ................................................ 140
Installing the rear fender................................................. 142
Removing the engine guard ............................................. 144
Installing the engine guard .............................................. 144
Removing the air filter x............................................... 145
Installing the air filter x................................................ 146
Cleaning air filter x....................................................... 146
Adjusting basic position of clutch lever............................. 147
Checking the fluid level of the hydraulic clutch ................. 148
Cooling system ............................................................... 148
Radiator fan................................................................... 149
Checking the antifreeze and coolant level ......................... 149
Checking the coolant level............................................... 150
Draining coolant x........................................................ 151
Filling coolant/bleeding the cooling system x.................. 153
Carburetor - idle ............................................................. 155
Carburetor - adjusting the idle speed x........................... 155
Emptying the carburetor float chamber x........................ 157
Checking engine oil level................................................. 158
Changing the engine oil and oil filter, cleaning the oil
screen x...................................................................... 159
Draining the engine oil x............................................... 160
Cleaning the oil screen x............................................... 161
Removing the oil filter x................................................ 161
Installing the oil filter x................................................ 163
Filling up with engine oil x............................................ 163
Topping up engine oil ..................................................... 164
TROUBLESHOOTING.......................................................... 166
CLEANING......................................................................... 171
Cleaning the vehicle ....................................................... 171
STORAGE .......................................................................... 173
Storage.......................................................................... 173
Putting the vehicle into operation after storage.................. 174
TECHNICAL DATA - ENGINE............................................... 175
Capacity - engine oil ....................................................... 176
Capacity - coolant........................................................... 176
TECHNICAL DATA - ENGINE TIGHTENING TORQUES........... 177
TECHNICAL DATA - CARBURETOR...................................... 180
TECHNICAL DATA - CHASSIS ............................................. 181
Lighting equipment ........................................................ 183
Tires ............................................................................. 183

CONTENTS 6
Capacity - fuel................................................................ 183
TECHNICAL DATA - FRONT SHOCK ABSORBER................... 184
TECHNICAL DATA - REAR SHOCK ABSORBER..................... 186
TECHNICAL DATA - CHASSIS TIGHTENING TORQUES ......... 188
SUBSTANCES.................................................................... 190
AUXILIARY SUBSTANCES................................................... 194
STANDARDS...................................................................... 197
INDEX ............................................................................... 198

MEANS OF REPRESENTATION 7
Symbols used
The symbols used are explained in the following.
Indicates an expected reaction (e.g. of a work step or a function).
Indicates an unexpected reaction (e.g. of a work step or a function).
All work marked with this symbol requires specialist knowledge and technical understanding. In the interest of your
own safety, have these jobs done in an authorized KTM workshop! There, your vehicle will be serviced optimally by
specially trained experts using the specialist tools required.
Identifies a page reference (more information is provided on the specified page).
Formats used
The typographical and other formats used are explained in the following.
Specific name Identifies a specific name.
Name®Identifies a protected name.
Brand™ Identifies a brand in merchandise traffic.

IMPORTANT NOTES 8
Use definition
KTM ATVs are designed and built to withstand the normal stresses and strains of competitive use. The vehicles comply with currently valid
regulations and categories of the top international motorsport organizations.
Warning
Danger of accidents Incorrect assessment of riding situations.
–The vehicle may only be ridden by persons over the age of 16.
Info
The ATV must be used only on private property remote from public road traffic.
The ATV is designed for off-road sport endurance competition (Enduro) and not for the predominant motocross use.
Maintenance
A prerequisite for perfect operation and prevention of wear is that the engine and chassis maintenance and adjustment work described in
the owner's manual are properly carried out. Poor adjustment and tuning of the engine and chassis can lead to damage and breakage of
components.
Using the vehicle in extreme conditions such as very muddy or wet terrain can lead to above-average wear of components such as the
transmission train or the brakes. For this reason, it may be necessary to service or replace worn parts before the limit specified in the
service schedule is reached.
Pay careful attention to the prescribed running-in period, inspection and maintenance intervals. If you observe these exactly, you will
ensure a much longer service life for your vehicle.
Fuel, oils, etc.
You should use the fuels, oils and greases according to specifications as listed in the owner's manual.