Camshafts; Automatic Decompression - KTM 450 SX-F Repair Manual

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Camshafts

– Wrap some masking tape around the outer cam on the camshaft to
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protect it from being damaged in the vise.
– Clamp the camshaft in a vise with aluminum protective jaws.
Position the outer cam so that the camshaft will not rotate.
– Remove the screw
– Press the camshaft gear
– Remove the roller bearing
Assemble in the reverse order, paying attention to the following items:
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– Inspect the parts for damage or wear.
– Replace any damaged or worn parts.
– Oil the roller bearing
– Degrease the cone on the camshaft
– Oil the thread and contact mounting face of the screw
– Lightly tighten the screw
still be turned. They will be adjusted and the screw tightened when
they are mounted in the cylinder head.

Automatic decompression

Check:
– Push the camshaft bearing lager towards the camshaft gear and
hold.
– Pull the lever
– The lever
– Replace the exhaust camshaft if damaged or worn.
.
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off the camshaft
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so the camshaft and camshaft gear can
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away from the camshaft and release.
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should automatically move back to the initial position.
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and the camshaft gear .
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