Stihl MS 650

19MS 650, MS 660
Clean stub of crankshaft. Wash the
needle cage, examine it for damage
and replace if necessary. Lubricate
needle cage with STIHL multi-
purpose grease – b 17.
: Rotate clutch drum/chain
sprocket and apply slight
178RA002
VA
pressure at the same time until
the oil pump drive spring
engages the notch (see arrow).
Reassemble in the reverse
sequence.
– Remove the chain sprocket
cover, chain and bar – b 5
: Take out the screw (1).
: Remove the chain catcher (2).
Reassemble in the reverse
178RA006
1
VA
2
sequence.
– Remove the chain sprocket
cover, chain and bar – b 5
: Hold the self-locking nut steady
and take out the screw (1).
: Take out the screw (3).
178RA007
3
2
VA
1
: Remove the spiked bumper (2)
and chain catcher.
Reassemble in the reverse
sequence.
5.2 Replacing the
Chain Catcher
5.3 Spiked Bumper