Fuel System; Air Filter; Removing And Installing; Choke Shutter - Stihl BT 45 Manual

8.

Fuel System

8.1

Air Filter

Dirty air filters reduce engine power,
increase fuel consumption and
make starting more difficult.
If there is a noticeable loss of
engine power, check to see if the
air filter is plugged with dirt.
– Before removing the air filter,
close the choke shutter and
remove all loose dirt from around
the filter.
– Install a new filter. As a temporary
measure, knock the filter out on
the palm of your hand or blow
clear with compressed air. Do not
wash.
Replace a damaged air filter
immediately.
22
8.1.1

Removing and Installing

1
2
: Unscrew the fastening nut (1)
and remove the filter cover (2).
1
: Pull out the filter (1).
– Knock the filter out on the palm of
your hand or blow clear with
compressed air. If heavily
contaminated, install a new filter.
Do not wash the air filter.
Replace a damaged air filter
immediately.
Install in the reverse sequence.
8.1.2

Choke Shutter

– Remove the air filter - b 8.1
– Remove the fan housing with
rewind starter - b 6.1
– Remove the handle housing
- b 5.1
2
: Remove the E-clip (1).
: Pull the lever (2) out of the guide
in the choke shutter.
: Slide the choke shutter to the left
until the guides (arrows) are on
the necked parts of the choke
shaft.
: Take out the choke shutter.
1
BT 45