SR 430, SR 450
English
32
Exhaust emissions are controlled by the 
design of the fundamental engine 
parameters and components (e.g. 
carburation, ignition, timing and valve or 
port timing) without the addition of any 
major hardware.
Dirty air filters reduce engine power, 
increase fuel consumption and make 
starting more difficult.
If there is a noticeable loss of engine 
power
N Turn the choke knob to c .
N Loosen the screws (1).
N Remove the filter cover (2).
N Remove the filter element (3).
N Replace dirty or damaged filters.
N Fit the new filter in the filter housing.
N Fit the filter cover.
N Fit the screws and tighten them 
down firmly.
Engine Management Replacing the Air Filter