KTM 250 1998, Repair Manual

Page: 36 / 59

– Secure bump plate fastening screws
1
and
2
.
– Remove depth gauge.
– 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.
– Adjust linkage length if necessary.
– To do so, loosen counter nut and turn ball socket accordingly.
– Retighten counter nut.
– Once adjustments are completed, remove ball socket once again and fit gasket
for control cover.
– Refit ball socket and fit safety device.
– Secure gasket with grease and fit control cover
7
.
5.13 Cylinder head
– Clean cylinder and cylinder head sealing surface, place O-rings in grooves.
– Mount cylinder head with water nozzle on the exhaust side.
– Mount the collar screws with new copper gaskets and tighten them crosswise,
taking three turns to achieve the total tightening torque of 35 Nm (25 ft.lb.).
– In first stage, only tighten until slight resistance is felt.
5.14 Reed valve housing, intake flange
– Place reed valve housing with velocity insert in inlet duct and fix intake flange
with the 5 collar screws.
5
7
1
2
3
4
7
5
6