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16
Removing the seat
The quick-release mechanism 1 allows removal of the seat without tools.
Turn the quick-release device approximately 180° counterclockwise, lift the
rear portion of the seat and pull the seat off backwards.
When mounting the seat ensure that the hook engages at the tank.
Checking and adjusting the steering head bearing (50 SX
JUNIOR) *
The steering head bearing should be checked regularly for play. For this
purpose, jack up the motorcycle by the frame so that the front wheel is in
the air. Now try to move the fork forward and backward. There should be
no clearance. For readjustment, release the two clamp screws
2 of the top
triple clamp and the counternut
3. Turn the adjusting nut 4 until almost
no play is left. Do not tighten the adjusting nut! Tightening the adjusting
nut can damage the bearings! Keep in mind that tightening the counternut
3 reduces the play of the bearing. Slightly tap the top triple clamp with a
rubber hammer to prevent jamming. Then tighten the 2 clamp screws with
15 Nm.
ƽ
WARNING
ƽ
IFTHE STEERING HEAD BEARING IS NOT ADJUSTED TO BE FREE OF CLEARANCE, THE
MOTORCYCLE WILL EXHIBIT UNSTEADY DRIVING CHARACTERISTICS AND CAN GET OUT OF
CONTROL
.
!
CAUTION
!
–T
HE HANDLEBAR MUST MOVE EASILY. OTHERWISE THE BEARINGS WILL BE DAMAGED.
–I
F YOU DRIVE WITH PLAY IN THE STEERING HEAD BEARING FOR LONGER PERIODS, THE
BEARINGS AND SUBSEQUENTLY THE BEARING SEATS IN THE FRAME WILL BE DESTROYED
.
At least once a year, the steering head bearings should be smeared with
waterproof grease (Shell Advance Grease).
MAINTENANCE WORK ON CHASSIS AND ENGINE
ƽ
WARNING
ƽ
MAINTENANCE WORK AND ADJUSTMENTS MARKED WITH AN ASTERISK (*) MUST BE PER-
FORMED BY AN EXPERT. TO PROTECT YOUR YOUNGSTER, ALWAYS HAVE SUCH WORK PER-
FORMED BY A SPECIALIZED KTM DEALER WHERE YOUR MOTORCYCLE WILL BE OPTIMALLY
SERVICED BY APPROPRIATELY QUALIFIED, SKILLED STAFF.
!
CAUTION
!
–W
HEN CLEANING THE MOTORCYCLE, DO NOT USE A HIGH PRESSURE CLEANING UNIT IF POSSIBLE, OTHERWISE WATER WILL PENETRATE THE
BEARINGS
, CARBURETOR, ELECTRIC CONNECTORS, DRUM BRAKES, ETC.
–B
EFORE CLEANING WITH WATER, PLUG THE EXHAUST PIPE TO PREVENT WATER INGRESS
–WHEN TRANSPORTING YOUR MOTORCYCLE, SECURE IT WITH ELASTIC STRAPS OR OTHER MECHANICAL DEVICES IN AN UPRIGHT POSITION.
BESURE THAT THE FUEL TAP IS CLOSED
. IFTHE MOTORCYCLE TOPPLES OVER, FUEL CAN FLOW OUT OF THE CARBURETOR OR FUEL TANK.
–D
O NOT USE TOOTHED WASHERS OR SPRING RINGS WITH THE ENGINE FASTENING SCREWS, AS THESE WORK INTO THE FRAME PARTS AND KEEP
WORKING LOOSE
. INSTEAD, USE SELF-LOCKING NUTS.
–LET YOUR MOTORCYCLE COOL DOWN BEFORE BEGINNING ANY MAINTENANCE WORK IN ORDER TO AVOID GETTING BURNED.
–D
ISPOSE OF OILS, FATTY MATTERS, FILTERS, FUELS, WASHING DETERGENTS, ETC. PROPERLY.
–UNDER NO CIRCUMSTANCES MAY USED OIL BE DISPOSED OF IN THE SEWAGE SYSTEM OR IN THE OPEN COUNTRYSIDE. 1 LITER OF USED OIL
CONTAMINATES
1,000,000 LITERS OF WATER.
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