•
Slip installing sleeve (1) 4112
893 2400 over the end of the
crankshaft.
Push the oil seal, open side 
facing the crankcase, over the 
installing sleeve and press it 
home with the press sleeve.
•
Press home with press sleeve
(1) 1118 893 2401.
Remove the installing sleeve.
Install carrier - see 3.2.
Always check and, if necessary, 
repair the fuel system, carburetor,
air filter and ignition system before
looking for faults on the engine.
Troubleshooting chart - see
"Standard Repairs, Trouble- 
shooting" handbook.
Remove the muffler - see 4.1.
Remove the carburetor - see
8.2.1 and 8.2.2.
•
Take out screws (1).
•
Pull away the carburetor housing
(2).
FS 400/450, FR 450
•
Disconnect hose from fuel pump
and pull it out of the guide.
•
Take out screws (1).
•
Pull away the carburetor hous-
ing (2), ease grommet out of 
carburetor housing and pull the
extended throttle cable out of the
housing opening.
Assemble in the reverse 
sequence.
•
Fit stub (1) on carburetor hous-
ing in the sealing ring (2) and
throttle cable (3) in the retainer
(4).
 Tighten down screws to 6 Nm
(4.4 lbf.ft).
250RA022
1
VA
250RA025
VA
250RA023
1
VA
250RA024
2
11
VA
250RA026
VA
1
1
2
250RA027
3
4
2
1
VA
4.4 Exposing the Cylinder
)6)5