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Fig.1 ENGINE UNIT
BC3410FW/BC4310FW
Q’TY
Key# PART NUMBER DESCRIPTION NOTE
/UNIT
1A T1151-12110 CYLINDER 1 BC3410
1B 4500-12110 CYLINDER 1 BC4310
2 1850-12130 BOLT 4 M5xL22
3 4500-13120 GASKET, cylinder 1
4 4500-21101 CRANKCASE COMP. 1
5 2629-21130 • PIN 3
6 4500-21140 GASKET CASE 1
7 06030-06201 BEARING 2
8 4810-21210 OIL SEAL 1
9 1650-21220 OIL SEAL 1
10 01252-30530 BOLT 4 M5xL30
11 04065-03212 SNAP RING 1
12A 4700-41110 PISTON 1 BC3410
12B 4500-41110 PISTON 1 BC4310
13A 1650-41210 RING 2 BC3410
13B 1400-41220 RING 2 BC4310
14A 1030-41310 PIN 1 BC3410
14B 2850-41310 PIN 1 BC4310
15 1300-41320 RING 2
16 T2100-41410 BEARING 1
17 2850-41510 WASHER 2
18 4500-42000 CRANKSHAFT COMP. 1
19A 1400-51111 SHOE, clutch 2 BC3410
19B 4500-51111 SHOE, clutch 2 BC4310
20A 1651-51220 SPRING 1 BC3410
20B 4500-51220 SPRING 1 BC4310
21 1200-51211 SCREW 2
22 1200-51230 WASHER 2
23 1200-51241 WASHER 2
Q’TY
Key# PART NUMBER DESCRIPTION NOTE
/UNIT
24 T1153-71110 ROTOR 1
25A T1158-71200 COIL ASSY 1 BC3410
25B T1117-71200 COIL ASSY 1 BC4310
26 4570-71220 • CORD 1
27 2616-71320 • CAP 1
28 T1153-71250 • PIN 2
29 5500-72110 • CAP, plug 1
30 5500-72120 • SPRING 1
31 3350-14150 BOLT 2 M4xL20
32 3699-90020-10 SPARK PLUG 1 CJ6Y
33 1650-43230 NUT 1 M8
34 1000-43240 KEY 1
35A 4770-15110 MUFFLER 1 BC3410
35B 4570-15110 MUFFLER 1 BC4310
36A 01252-30560 BOLT 2 BC3410
36B 01252-30565 BOLT 2 BC4310
37 3310-31720 BOLT 1 M5xL14
38 T1048-15210 GASKET 1
39 4570-15220 PLATE 1
40 0263-90514 SCREW 1
41 T1117-31111 COVER, fan 1
42 3310-12281 BOLT 4 M5xL20
43 4500-31210 PLATE 1
44 4500-22110 GUARD 1
45 0263-90514 SCREW 1 M5xL14
46 8488K40010 CLAMP 1
47 T1085-71240 CORD COMP. 1