Stihl MS 290 Manual page 25

1
: Remove spark arresting screen
(1), if fitted. Clean the screen or fit
a new one if necessary
: Remove the muffler (2).
: Remove the gasket (1).
MS 390 (US version only)
: Remove the exhaust gasket (1).
24
2
: Remove the screws (arrows)
sideways from the flange.
Remove screw (1) as follows:
– Remove the shroud, b 6.4
– Remove the screw sideways
from the flange.
Install in the reverse sequence.
Install new gaskets.
1
1
1
1
3
2
: Install the muffler (1), making
sure the conical spring washers
(2) are fitted correctly as shown.
: Use new nuts (3) and tighten
them down firmly, b 3.5.
MS 290, MS 310, MS 390