KTM 125 SX 2010, Owner'S Manual

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1
2
3
6
5
4
A
2
2-3
Checking the setting of the TVC system
The function of the TVC system is checked with the engine running.
This test checks the start of advance and the end of advance.
– To do this, remove the left control cover.
– Connect a rev counter (either to the ignition cable or to the cable in
the electronics box, depending on the rev counter design).
– Start engine, accelerate gently and observe when the TVC system
starts to advance (tooth segment creeps upwards).
– If necessary, turn the adjusting screw
A
. Always note the original
position (factory setting) of the adjusting screw to be able to turn it
back if necessary.
NOTE: Twisting the adjusting screw in delays the commencement of
adjustment by the TVC system, twisting the adjusting screw out means
that the TVC system will perform the adjustment earlier.
!
CAUTION
!
S
INCE EACH ENGINE IS ADJUSTED FOR MAXIMUM PERFORMANCE ON THE
TEST STAND
,
THE ADJUSTING SCREW SHOULD ONLY BE TURNED OR
ADJUSTED IF ITS POSITION IS ACCIDENTALLY CHANGED
.
Engine characteristic
NOTE: The engine characteristic can be modified through various
thicknesses of the auxiliary spring
1
. An auxiliary spring designed for
"good driveability" (smooth power application) is mounted in the
condition at delivery.
One of the auxiliary springs can be mounted if you prefer an “even smoother
power application“ or an “aggressive engine characteristic“.
Auxiliary spring for good driveability (mounted in condition at delivery)
Spare part number 546.37.072.300, YELLOW color mark
Auxiliary spring for an even smoother power application (included in scope
of supply) Spare part number 548.37.072.100, GREEN color mark
Auxiliary spring for aggressive engine characteristic (included in scope of
supply). Spare part number 548.37.072.000, RED color mark
– To mount, tilt the motorcycle approx. 45° to the left, remove both
screws
2
lift off the closing cover
3
lift off the closing cover
4
from the clutch cover.
– Pull both springs off the spring insert, mount the desired auxiliary
spring
1
and adjusting spring
5
and slide into the clutch cover
together until the recess in the spring insert
4
engages in the clutch
cover.
– Check the O-ring in the closing cover, mount the closing cover
ensuring that the dolly screw
6
engages in the auxiliary spring.
Make sure you do not turn the dolly screw since as will impair the
engine characteristic.
NOTE: If you prefer a smoother engine power application, you can
mount a different ignition rotor and a different exhaust. Ask your KTM
dealer for more information.