KTM 450 EXC-F 2017 Repair Manual page 231

18
ENGINE
18.5.27 Checking the valve clearance
18.5.28 Adjusting the valve clearance
Mount and tighten screw plug
8
with washer
8
and spring
8 .
Guideline
229
I
Plug, timing chain tensioner
Ia
Nm (5.9 lbf ft)
Remove special tool
0 .
I
Locking screw (113080802)
( !!:!
p. 36 1)
- Crank the engine several times.
Position the engine at ignition top dead center.
( !!:!
p. 169)
- Check the va lve c learance at all valves between the va lve and rocker arm.
Guidel ine
Va lve clearance
Intake at: 20
o c
(68 °F) 0.10 ... 0.15 mm (0.0039 ...
0.0059 in)
Exhaust at: 20
o c
(68 °F}
0.12 ... 0.17 mm (0.0047 ...
0.0067 in)
I
Feeler gauge (5902904 1100)
(!!;.!
p. 364)
»
If the valve clearance does not meet specifications:
- Adjust the va lve clearance.
(!!:!
p. 229)
Remove the special tool.
I
Locking screw (113080802)
( !!:!
p. 36 1)
Mount and tighten screw
8
with washer.
Guidel ine
I
Screw plug, crankshaft location
Main work
Remove the timing chain tensioner.
(!!:!
p. 169)
Remove the camshaft.
(!!:!
p. 1 70)
Raise rocker arm
0
on the outside.
10 Nm (7.4 lbf ft)
Remove shims
8
and set them down according t o the instal lation position .
- Correct the sh ims based on the results of the valve c learance check.
Insert suitable shims.
Instal l the camshaft.
(!!:!
p. 227)
Install the timing chain tensioner.
(0
p. 228)
Finishing work
- Check the va lve clearance.
(i!ll
p. 229)