91FS 240 C, FS 260 C, FS 360 C, FS 410 C, FS 460 C-M
11. Fuel system
11.1 Air filter
– Refer also to troubleshooting, 
b 3.6, b 3.7
: Remove screws (1)
: Remove the filter cover (2)
: Remove the air filter (1)
– Examine air filter, clean or 
replace if necessary 
– see Instruction Manual
– Reassemble parts in reverse 
order
5904RA390 TG
1
1
2
5904RA391 TG
1
11.2 Filter housing 
– Remove the air filter, b 11.1
Versions with M-Tronic
: Remove plug (1) on diagnostic 
connector (arrow)
All versions
: Remove screws (1)
In versions with M-Tronic, the 
grommet (2) is not removed 
because it is connected to the 
switchgear.
: Remove grommet (2)
5904RA394 TG
1
5904RA003 TG
1
1
2
All versions
: Remove tank vent hose (1) at the 
connector (arrow) – always use a 
new tank vent hose
: Unscrew nuts (1) and pull off filter 
housing (2)
: Press out grommet (1) in the 
direction of the carburetor
– For versions with M-Tronic: 
check the plug of the diagnostic 
connector, replace if necessary
5904RA395 TG
1
5904RA396 TG
1 1
2
5904RA397 TG
1