Mounting steering covers, Mounting cylinder head, Mounting reed valve housing and intake flange – KTM 250 SX User Manual
Page 64: 9c 1 2

Mounting steering covers
– Mount the right-hand control cover
1
, and fix it with 3 screws.
– Place gasket in position and fix left-hand steering cover
2
on cylinder.
Mounting cylinder head
– Clean cylinder and cylinder head sealing surface, place O-rings in
grooves.
– Mount cylinder head with water nozzle on the exhaust side.
– Oil the collar nuts at threads and contact faces.
– 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.
Mounting reed valve housing and intake flange
– Place reed valve housing with velocity insert in inlet duct and fix intake
flange with the 5 collar screws.
6-9C
1
2