YAMAHA EF4000DX PARTS CATALOGUE
YAMAHA GENERATOR
EF4000DX
(7VW2) (120/240V–60Hz) CANADA
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207VW–171E1
EF4000DX
PARTS CATALOGUE
E2001 by Yamaha Motor Co., Ltd.
1st Edition, Feb. 2001
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
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FOREWORD
This Parts Catalogue is related to the parts for the model(s) in the below frame. When you are
ordering replacement parts, please refer to this Parts Catalogue and quote both part numbers
and part names correctly.
1. Modifications or additions which have been made after issue of the Parts Catalogue
will be announced in the Yamaha Parts News.
It is advisable that you make necessary corrections to the Parts Catalogue according
to the Yamaha Parts News.
2. Abbreviations
The following abbreviations are used in this Parts Catalogue.
“UR” Use specified parts number.
“UN” Use as many as needed.
“AP” Alternate Parts
“LM” Local Made (Parts need to be ordered locally)
“F#” Frame No. (Applicable machine No.)
3. Parts, which are to be supplied in an assembly, are listed with a dot(.) in front of the
part name as shown below.
EXAMPLE
CARBURETOR ASSY
.JET, PILOT
.NOZZLE, MAIN
5. Applicable Starting Serial No. and Color Code
MODEL NAME
EF4000DX 7VW2 7VW–280101
Engine Serial No.
Color
Code
00NJ FARAWAY BLUE FWB 7VW2 CANADA
6. Note that the illustrations for reference in finding parts numbers, not to be used for
assembling. When assembling, please use the applicable service manual.
7. The asterisk (*) before a reference number indicates modification items after the first
edition.
MODEL TYPE FRAME NO.
Color Name
Abbrevi-
ation
MODEL
Country
(destination)
4. Number of component for assembly
The numeral appearing to the right of each component part indicates the quantity of
parts for each assembly unit.
EXAMPLE
PART NO. DESCRIPTION Q’TY REMARKS
2F5–83310–60 FRONT FLASHER LIGHT ASSY 2
115–83311–60 .BULB (6V–18W) 1
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FIG. 1 CYLINDER
REF.
NO.
10 7UH–11193–00 GASKET, HEAD COVER 1 1
11 95827–06012 BOLT, FLANGE 4
12 7RH–11166–00 PIPE, BREATHER 1 1
13 90116–06450 BOLT, STUD 2
PART NO. DESCRIPTION REMARKS
1 7UH–11111–00 HEAD, CYLINDER 1 1
2 7UH–11181–00 GASKET, CYLINDER HEAD 1 1
3 95817–10070 BOLT, FLANGE 4
4 99530–14016 PIN, DOWEL 2
5 95627–08618 BOLT, STUD 2
6 94702–00331 PLUG, SPARK (NGK BPR4ES) 1
7 7UH–11191–00 COVER, CYLINDER HEAD 1 1
8 7UH–11160–00 BREATHER ASSY 1
9 7UH–11169–00 GASKET, BREATHER COVER 1
7VW2
B
2
FIG. 2 CRANKSHAFT. PISTON
REF.
NO.
PART NO. DESCRIPTION REMARKS
1 7VW–11400–00 CRANKSHAFT ASSY 1
2 7UH–11631–00–A0 PISTON (STD) 1
7UH–11635–00 PISTON (0.25MM O/S) 1 AP
7UH–11636–00 PISTON (0.50MM O/S) 1 AP
3 7UH–11603–00 PISTON RING SET (STD) 1
7UH–11604–00 PISTON RING SET (0.25MM O/S) 1 AP
7UH–11605–00 PISTON RING SET (0.50MM O/S) 1 AP
4 214–11633–00 PIN, PISTON 1
5 93450–19047 CIRCLIP 2
6 7UH–11650–00 CONNECTING ROD ASSY 1
7 JA9–11654–01 .BOLT, CONNECTING ROD 2
7VW2
B
3
FIG. 3 GOVERNOR 1
REF.
NO.
10 90468–12006 CLIP 1
11 7UH–11924–00 ARM, GOVERNOR 1
12 97027–06030 BOLT 1
13 92907–06600 WASHER, PLATE 1
14 90173–06017 NUT, SQUARE 1
15 7LV–11928–10 ROD, LINK 1
PART NO. DESCRIPTION REMARKS
1 7RH–11970–00 FLYWEIGHT SHAFT ASSY. 1
2 7RH–11913–00 .WEIGHT 3
3 7FK–11914–00 .SHAFT, WEIGHT 3
4 90201–065K7 WASHER, PLATE 1
5 93440–06107 CIRCLIP 1
6 90201–067L0 WASHER, PLATE 1
7 7KY–11917–00 COLLAR 1
8 7RH–11922–00 FORK, GOVERNOR 1
9 90201–08092 WASHER, PLATE 2
7VW2
B
16 90506–04495 SPRING, TENSION 1
17 7VW–11941–00 STAY 1
18 7VW–11931–00 LEVER 1
19 90153–06053 SCREW, HEXAGON 1
20 98507–06030 SCREW, PAN HEAD 1
21 90501–10264 SPRING, COMPRESSION 2
22 7VW–11925–10 SPRING, GOVERNOR 1
23 95807–06012 BOLT, FLANGE 1
24 7VW–11940–00 STAY COMP. 1
25 90109–06513 BOLT 1
26 7X6–11960–00 DIAPHRAGM ASSY 1
27 95707–08500 NUT, FLANGE 1
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FIG. 3 GOVERNOR 1
REF.
NO.
28 7VW–41234–00 SPRING, RETURN 1
29 7VW–13545–10 HOSE 1 1
30 90445–08674 HOSE (L340) 1
31 7VW–41250–00 CHOKE BRACKET ASSY 1
32 7VW–41256–00 ROD, CHOKE 1 1
33 90506–04003 SPRING, TENSION 1
34 95807–06008 BOLT, FLANGE 1
PART NO. DESCRIPTION REMARKS
7VW2
B
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