Carburetor; Special Servicing Tools, Servicing Aids; Testing Carburetor For Leaks - Stihl BR 800 Service Manual

9

Carburetor

38
9.1

Special Servicing Tools, Servicing Aids

Pump – 0000 850 1300
–
Nipple – 0000 855 9200
–
Screwdriver – 0000 890 2300 or equivalent
–
MDG 1 analyzer – 5910 840 0210
–
Tachometer, EDT 8 – 5910 850 1009
–
Screwdriver – 5910 890 2307
–
Screwdriver, T8 – 5910 890 2310
–
Hose, 135mm – 1110 141 8600
–
Scriber
–
Screwdriver, PH1x80 mm
–
Pin punch, 6 mm
–
STIHL OH 723 press fluid – 0781 957 9000
–
Loctite 242 (medium-strength threadlocking
–
adhesive) – 0786 111 2101
9.2

Testing Carburetor for Leaks

Remove the carburetor, @ 8.2.
N
Open the tank cap and close it again.
N
Pressure is equalized.
Pull hose off carburetor's fuel stub (10).
N
BR 800
36
37
33 32
35
34
39 40 41
42
9
46
8
45
44
43
19
18
17
21
20
16
15
14
12
13 22
23
11
10
7
31
30 29 28 27
6
5
4
3
2
1
10
Push the 135mm hose 1110 141 8600 (46) onto the
N
carburetor's fuel stub (10).
Fit nipple 0000 855 9201 (45) in the 135mm
N
hose 1110 141 8600 (46).
Connect hose from pump 0000 850 1300 (43) to
N
nipple 0000 855 9201 (45).
Push ring (44) of pump 0000 850 1300 (43) in
N
direction of pump's handle (over-pressure).
Operate the pump 0000 850 1300 (43) until pressure
N
of 0.8 bar (11.6 psi) is indicated.
If the indicated pressure remains constant, the carburetor
is airtight.
26 25 24
44 43
46 45
23