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Repair manual KTM 250 -F Art.-No. 3.206.052-E
Camshaft bearing bridges
– Check both camshaft bearing bridges for wear, seizing marks and
damage.
– Pull out the cam lever shafts
1; they are inserted loosely, and can
easily be removed by tapping gently on the camshaft bearing bridge.
NOTE: if remounting the cam lever, write down the installation
position.
– Check the cam lever shafts and cam lever
2 for wear, seizing marks
and damage.
– Blow into the oil bore
3 with compressed air or a cleansing spray to
make sure the oil jets
4 are not clogged.
– If the oil jets ("50") were removed, apply Loctite 243 and tighten to
3 Nm.
– Install the cam lever according to the original installation position
and slide into the cam lever shafts.
NOTE: the cam levers must be arched up towards the camshaft (see
photo). The cam levers will break if they are mounted upside down.
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