Checking The Valves - Husqvarna FS 450 2017 Repair Manual

17 .4.29

Checking the valves

Info
The valve stem is hard-chrome plated; wear generally appears at the valve guide.
Press the small camshaft bearing in until flush using special
8.
tool
Pressing tool (75029044020)
Press the large camshaft bearing in all the way using special
0.
tool
Pressing tool (75029044010)
Check the valve plate for run-out.
Valve
Run-out at valve plate
If the measured value does not meet specifications:
- Change the valve.
Check sealing seat
If the sealing surface is damaged or worn:
Machine the valve seat.
302808-10
(IUI p. 301)
(IUI p. 301)
::; 0.05 mm (='> 0.002 in)
f)
on valve for damage and wear.
ENGINE 17
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