KTM 450 SX ATV 2010 User Manual

30/ENGINE - WORK ON INDIVIDUAL PARTS 130
301219-11
– Mount screw  but do not tighten yet.
Guideline
Screw, camshaft gear M10x1 50 Nm
(36.9 lbf ft)
lubricated with
engine oil
– Repeat these steps for the second camshaft.
19.23Checking the autodecompressor
301221-10
– Check the autodecompressor for damage.
» If there is damage or wear:
– Change the exhaust camshaft.
– Slide the camshaft bearing to the camshaft gear.
– Pull lever  away from camshaft and release it.
» If the lever does not return to its original position:
– Change the exhaust camshaft.
19.24Checking camshafts
301250-10
– Check the camshaft for damage and wear.
» If there is damage or wear:
– Change the camshaft.
– If the surface of the cams is damaged, check the oil supply to the camshaft
and cam lever.
– Measure the cams of the camshaft.
Camshaft - cam height
Exhaust 33.10… 33.30 mm (1.3031…
1.311 in)
Camshaft - cam height (450 SX ATV)
Intake 33.90… 34.10 mm (1.3346…
1.3425 in)
Camshaft - cam height (505 SX ATV)
Intake 34.20… 34.40 mm (1.3465…
1.3543 in)
» If the measured value does not meet specifications:
– Change the camshaft.
19.25Checking the radial clearance of the camshaft bearings
301222-10
– Position the camshafts.
The valves are not activated.
– Insert the Plastigauge clearance gauge in area .
Plastigauge measuring strips (60029012000) ( p. 230)
PartShark.com
877-999-5686

KTM 450 SX ATV 2010 Specifications

General

Brand	KTM
Model	450 SX ATV 2010
Category	Offroad Vehicle
Language	English