250/300/380 sx,mxc,exc repair manual engine - Tanga Moteurs

Repair manual KTM 250 / 300 / 380 Art No 3206004 -E
control
flap
5
7
2
6
8
3
1
4
Adjusting control flap (dimension “Z“)
Note: Dimension “Z“ is the distance from the lower edge of the control
flap to the upper edge of the cylinder, as measured in the centre of the
exhaust port.
250 Model 1999 : 48,0 mm
250 Model 2000 : 50,5 mm
250 ab Model 2001 : 49,5 mm
+ 0,2 / - 0,6 mm
300 : 46,0 mm
+ 0,2 / - 0,6 mm
380 : 50,5 mm
+ 0,2 / - 0,6 mm
+ 0,2 / - 0,6 mm
– Undo the screws of the stop plate (left side of the cylinder) 1 and 2
and apply Loctite 243 to the threads. Then mount both screws but do
not tighten them yet.
– Set preselected value on depth gauge and fix.
– Swifel control flap upwards and hold depth gauge into cylinder as
shown in the illustration.
– Control flap must rest against depth gauge.
– Allow bump plate 3 to rest against retaining bracket 4.
– Secure bump plate fastening screws 1 and 2.
– Remove depth gauge.
– Having tightened the screws 1 + 2, you have to check the dimension
"Z" again and correct it, if necessary.
– Press linkage of control flap 5 down-wards as far as stop and press
ball socket 6 onto ball of adjusting lever.
When pressing ball socket do not:
● pull the linkage too far up (max. 1 mm / 0.04 in).
● swivel control flap upwards.
+ 0,2 / - 0,6 mm
– Adjust linkage length if necessary.
– To do so, loosen counter nut 7 and turn ball socket accordingly.
– Retighten counter nut.
6-8C
– Once adjustments are completed, remove ball socket once again and
fit gasket for control cover.
– Refit ball socket and fit safety device 8.