Checking The Valve Clearance; 17.5.28 Adjusting The Valve Clearance - Husqvarna FS 450 2019 Repair Manual

17 .5.27

Checking the valve clearance

17.5.28 Adjusting the valve clearance

-
e.
Mount and tighten screw plug @ with washer
spring
Guideline
Plug, timing chain
tensioner
O.
-
Remove special tool
I
Locking screw (113080802)
-
Crank the engine several times.
Position the engine at ignition top dead center.
-
Check the valve clearance at all valves between the valve and
rocker arm.
Guideline
Valve clearance
Intake at: 20 °C (68 °F)
Exhaust at: 20 °C (68 °F)
I
Feeler gauge (59029041100)
If the valve clearance does not meet specifications:
-
Adjust the valve clearance.
-
Remove the special tool.
I
Locking screw (113080802)
-
Mount and tighten screw @ with washer.
Guideline
Screw plug, locking
screw
Main work
-
Remove the timing chain tensioner.
-
Remove the camshaft. (0
(D
and
M8 8 Nm (5.9 lbf ft)
(ra!l p. 309)
(ra!l p. 174)
0.10 ... 0.15 mm (0.0039 ...
0.0059 in)
0.12 ... 0.17 mm (0.0047 ...
0.0067 in)
(ra!l p. 313)
(ra!l p. 241)
(ra!l p. 309)
M8 10 Nm (7.4 lbf ft)
(ra!l p. 17 4)
p. 175)
ENGINE 17
...
...
241