Checking The Shock Absorbtion Rubbers In The Rear Hub; Tires, Air Pressure; Checking Spoke Tension - KTM 400LC4 Owner's Handbook Manual

max 5 mm
TIRES - AIR PRESSURE
front
400 LC4 / 640 LC4
Road, driver only 1,5 bar (22 psi) 2,0 bar (29psi)
Road, with passenger 2,0 bar (29 psi) 2,2 bar (31psi)
640 Supermoto front
Road, driver only 2,0 bar (29psi) 2,2 bar (31psi)
Road, with passenger 2,2 bar (31psi) 2,4 bar (34psi)
Checking the shock absorption rubbers in the rear hub*
LC4 models have a damped rear wheel hub. For this purpose, the engine
1
power is conveyed from the rear sprocket via 6 shock absorption rubbers
to the rear wheel. These 6 absorption rubbers wear with increasing
operation time, and should be checked for wear whenever the rear wheel is
dismounted.
For this purpose, lie the rear wheel on a work bench with the rear sprocket
upwards, and put the wheel spindle in the hub. Now hold the rear wheel
firmly and try to turn the rear sprocket. The rear sprocket may not turn
more than maximum 5 mm (0,2 in) measured on the outside. If the play in
the chain wheel is larger, all 6 shock absorption rubbers are to be replaced.
Check the shock absorption rubbers for signs of damage and dirt.
I
F THE SHOCK ABSORPTION RUBBERS ARE NOT REPLACED IN GOOD TIME
SPROCKET CARRIER AND THE REAR HUB WILL BE DAMAGED
6
ABSORPTION RUBBERS

Tires, air pressure

Tire type, tire condition, and how much air pressure the tires have in them
affect the way your motorcycle rides, and they must therefore be checked
whenever you're getting ready to go anywhere on your motorcycle.
– Tire type and size can be found in the technical specifications and in the
homologation certificate
– Tire condition has to be checked every time you want to ride your
motorcycle. Before leaving check for punctures and nails or other sharp
objects that might have become embedded in the 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 regularly on a "cold" tire. Proper pres-
sure ensures optimum driving comfort and extends the life of your tires.
– D
O NOT MOUNT TIRES WHICH HAVE NOT BEEN APPROVED BY
COULD HAVE ADVERSE EFFECTS ON THE WAY YOUR MOTORCYCLE RIDES
rear
– T
HE FRONT AND REAR WHEEL ARE ONLY ALLOWED TO BE TIRED WITH TIRES THAT
HAVE THE SAME PROFILE TYPE
– F
OR YOUR OWN SAFETY REPLACE DAMAGED TIRES IMMEDIATELY
– W
ORN TIRES CAN HAVE A NEGATIVE EFFECT ON HOW YOUR MOTORCYCLE
PERFORMS
– I
F AIR PRESSURE IS TOO LOW
CAN RESULT
rear

Checking spoke tension

The correct spoke tension is very important for the stability of the wheels
and thus for riding safety. A loose spoke causes the wheel to become unba-
lanced and before long other spokes will have come loose. Check spoke
tension, especially on a new motorcycle, in regular intervals. For checking,
tap on each spoke with the blade of a screw driver (see illustration). A clear
tone must be the result. Dull tones indicate loose spokes. If necessary, have
the spokes retightened and the wheel centered by a KTM dealer.
S
POKES CAN TEAR IF YOU CONTINUE TO RIDE WITH THEM LOOSE
UNSTABLE HANDLING OF YOUR MOTORCYCLE
CAUTION
!
, .
NEVER SINGLE RUBBERS
WARNING
.
,
ESPECIALLY ON WET SURFACES
,
ABNORMAL WEAR AND OVERHEATING OF THE TIRE
WARNING
.
1
!
,
THE REAR
. A
LLWAYS REPLACE ALL
21
KTM. O
THER TIRES
.
.
. T
HIS MAY LEAD TO AN