Contents
1.
2.
3.
3.1
3.2
3.3
3.4
4.
4.1
4.2
4.3
4.4
4.5
5.
5.1
5.2
5.3
5.4
5.4.1
5.5
5.6
Replacing the
5.7
6.
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.3
6.4
6.4.1
6.5
6.5.1
6.5.2
Series 4180 Powerhead
2
6.6
6.6.1
3
6.6.2
6.6.3
4
4
7.
4
4
7.1
5
7.2
7
7.3
7
7.4
8
9
7.4.1
Decompression
10
12
7.5
Muffler / Spark
Arresting Screen
7.6
7.6.1
14
7.6.2
14
7.6.3
14
14
7.7
16
7.8
17
7.8.1
18
7.8.2
18
7.8.3
7.8.4
7.8.5
19
7.9
7.10
Upper Half of
19
Crankcase with
20
20
7.11
21
21
8.
22
23
8.1
23
8.2
23
8.2.1
25
8.2.2
25
26
8.3
27
27
8.4
28
29
9.
29
9.1
29
9.2
31
9.3
9.3.1
31
9.3.2
32
9.3.3
9.4
32
34
10.
35
11.
36
36
37
12.
37
38
39
40
41
41
43
44
45
47
48
49
49
51
51
52
52
52
54
55
q
© ANDREAS STIHL AG & Co. KG, 2007
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