Changing the basic position of the foot brake pedal. KTM 250 SX-F, 250 SX-F 2007, 450 SX-F 2007
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MAINTENANCE WORK ON CHASSIS AND ENGINE
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2
Changing the basic position of the foot brake pedal *
The basic position of the foot brake pedal can be altered by turning the stop screw [1]. The free play at the foot brake pedal must then be adjusted by means of the piston rod [2].
Measured on the outside, the foot brake pedal must have 3-5 mm (0.12–0.20
in) of free play before the piston rod can move the piston in the brake cylinder
(to be recognised from the resistance on the foot brake pedal).
3-5mm
If this free play is not present, then pressure can build up in the brake system when driving, causing the rear wheel to brake. The braking system overheats and may even fail completely in extreme cases.
1 min.
1 mm
3
Checking the rear brake pads
The brake pads can be inspected from the rear. The thickness of the linings may not be less than 1 mm (0.04 in).
At their most worn point brake pad linings should not be thinner than 1 mm, otherwise they could lead to brake failure. For your own safety don’t put off having your brake pads changed.
If the brake pads are replaced too late so that the lining is partly or entirely worn, the steel components of the brake pad will rub against the brake disc, thereby imparing the braking effect and destroying the brake disc.
27
Replacing the rear brake pads *
Push the brake caliper [3] toward the chain wheel in order to move the brake piston into its basic position. Remove the clips [4], pull out the bolt [5], and remove the brake pads. Thoroughly clean the brake caliper with compressed air and check the sleeves of the guide bolts for damage.
4
4
5
Insert the left brake pad into the brake caliper and secure it with the bolt.
Insert the right brake pad and push the bolt [5] into the brake caliper up to the stop. Reattach clips [4].
– It is very important to keep the brake disk free from oil and fatty matters.
Otherwise, the braking effect would be strongly reduced.
– After assembly, check if clips have been fitted correctly.
– After working on the braking system, always actuate the hand brake lever or foot brake lever, respectively to ensure that the brake pads will lie against the brake disk and the pressure point is established.
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Table of contents
- 3 IMPORTANT INFORMATION
- 6 SERIAL NUMBER LOCATIONS
- 6 Chassis number
- 6 Engine number, engine type
- 6 OPERATION INSTRUMENTS
- 6 Clutch lever
- 6 Hot start lever
- 7 Hand brake lever
- 7 Short circuit button
- 7 Starter button (450 SX-F)
- 7 Filler cap
- 7 Fuel tap
- 8 Choke
- 8 Shift lever
- 8 Kickstarter (250 SX-F)
- 8 Foot brake pedal
- 8 Plug in stand
- 9 Compression damping of fork
- 9 Rebound damping of fork
- 9 Compression damping of shock absorber
- 10 Rebound damping of shock absorber
- 11 MOTORCYCLE
- 11 Instructions for initial operation
- 11 Running in the Racing models
- 12 DRIVING INSTRUCTIONS
- 12 Check the following before each start
- 13 Starting when the engine is cold
- 13 Starting when the engine is warm
- 13 What to do when the engine is "flooded
- 14 Starting off
- 14 Shifting/Riding
- 14 Braking
- 14 Stopping and parking
- 15 PERIODIC MAINTENANCE
- 17 MAINTENANCE WORK ON CHASSIS AND ENGINE
- 17 Pivot bearing
- 18 Basic suspension setup for the weight of the driver
- 18 Checking the shock absorber and spring
- 18 Determining the static sag of the shock absorber
- 18 Determining the riding sag of the shock absorber
- 19 Checking the basic setup of the telescopic fork
- 19 Changing the spring preload on the telescopic fork
- 19 Replacing fork springs
- 19 Breather plug front fork
- 19 Cleaning the dust sleeves of the telescopic fork
- 20 Changing the fork offset (caster)
- 21 Checking and adjusting the steering head bearing
- 21 Checking the throttle cable installation
- 22 How to change the handlebar position
- 22 Check chain tension
- 23 Correct chain tension
- 23 sprocket teeth
- 24 Chain maintenance
- 24 Chain wear
- 25 General information about KTM disc brakes
- 26 Adjusting the free travel at the hand brake lever
- 26 Checking the brake fluid level - front brake
- 26 Refilling the front brake fluid reservoir
- 26 Checking the front brake pads
- 27 Replacing the front brake pads
- 27 Checking the rear brake fluid level
- 27 Refilling the rear brake fluid reservoir
- 28 Changing the basic position of the foot brake pedal
- 28 Checking the rear brake pads
- 28 Replacing the rear brake pads
- 29 Dismounting and mounting the front wheel
- 30 Dismounting and mounting the rear wheel
- 30 Checking spoke tension
- 31 Tires, air pressure
- 31 Battery (450 SX-F)
- 32 Charging the battery (450 SX-F)
- 32 Fuse (450 SX-F)
- 33 Cooling system
- 33 Checking the coolant level
- 33 Bleeding the cooling system
- 35 Cleaning the air filter
- 35 Adjusting the throttle cables
- 36 Changing the original position of the clutch lever
- 36 Checking the oil level of the hydraulic clutch
- 36 Bleeding of the hydraulic clutch
- 37 Carburetor - Adjust idling
- 37 Basic information on carburetor wear
- 37 Checking the float level (float height)
- 38 Draining the float chamber of the carburetor
- 38 Checking the engine oil level
- 39 Engine oil
- 39 Changing the engine oil
- 40 Changing the oil filter
- 41 TROUBLESHOOTING
- 43 CLEANING
- 43 STORAGE
- 44 TECHNICAL DATA - ENGINE
- 45 TECHNICAL DATA - CHASSIS
- 48 HEAD WORK INDEX