Craftsman 917.388290 Owner's Manual page 19

55 horsepower 21" rear discharge rotary lawn mower
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CRAFTSMAN
4-CYCLE
ENGINE
KEY
PART
NO,
NO.
DESCRIPTION
1
37266
2
26727
6
33734
7
36557
12
36775
1ZA
36558
12B
36694
!4
28277
15
30589
16
34839A
17
31335
18
651018
19
36281
20
32600
30
36776
40
40004
40005
41
36070
36071
42
40006
40007
43
20381
45
36777
46
32610A
48
27241
50
36778
52
29914
69
35261
70
34311E
72
36083
75
27897
80
30574A
81
30590A
82
30591
83
30588A
86
650488
89
611004
90
611112
92
650815
93
650816
100
34443B
101
610118
103
651007
110
37047
119
36787
120
36825
125
37288
126
37289
130
6021A
135
35395
150
31672
151
31673
151A
40017
169
36783
KEY
NO.
MODEL NUMBER 143.995502
PART
NO.
DESCRIPTION
Cylinder
172
36784
(Ind. 2,20 & 150)
174
30200
DowelPin
178
29752
Breather Element
Breather Ass'y.
182
6201
(Incl. 6 & 12A)
184
26756
Breather Tube
Breather Cover & Tube
185
36785
(Ind. 12B)
186
32653
Breather Tube Elbow
189
650839
Washer
191
36559A
Governor Rod (Ind. 14)
Govemor Lever
195
610973
Governor Lever Clamp
207
34336
Screw, Torx "I"-15,8-32 x
216
33086
19/64"
223
650451
Extension Spring
224
36786
Oil Seal
238
650932
Crankshaft
239
34338
Piston, Pin & Ring Set
241
35797
(Std.)
245
35O66
Piston, Pin & Ring Set
250
35065
(.010" OS)
260
36980
Piston & Pin Ass'y.
261
30200
(Std.) (Incl. 43)
262
650831
Piston & Pin Ass'y.
275
36790A
(.010" OS) (Ind. 43)
277
650988
Ring Set (StdJ
285
35000A
Ring Set (.010" OS)
287
650926
Piston Pin Retaining Ring
290
29774
Connecting Rod Ass'y.
292
26480
(Incl 46)
298
28763
Connecting Rod Bolt
300
36916
Vatve Lifter
Camshaft(MCR)
301
36246
Oil Pump Ass'y.
305
35647
* Mounting Flange Gasket
306
36998
Mounting Flange (Ind. 72
307
35499
thru 83,306)
309
650562
Oil Drain Plug
310
35648
Oil Seal
313
34080
Governor Shaft
325
37152
Washer
370A
36261
Governor Gear Ass'y.
370C
37199
(Incl. 81)
370K
36695
Governer Spool
380
640174
Screw, 1/4-20 x 1-114"
390
590737
Flywheel Key
400
36792B
Flywheel
BelleviltaWasher
416
36085
Flywheel Nut
Solid State ignition
417
650821
Spark Plug Cover
Screw, Torx T-15, 10-24
900
x 15116"
GroundW=re
* Cylinder Head Gasket
900
Cylinder Head
Exhaust Valve (Std.)
(Incl. 151)
Intake Valve
(Std.) (Incl. 151)
Screw, 5116-18 x 1o1/2"
Resistor Spark Plug
(RJ19LM)
Valve Spring
Valve Spring Cap
Intake Valve Seal
* Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-
28
Screw, 114-28 x 7/8"
• Carburetor To Intake
Pipe Gasket
Intake Pipe
Governor Link
Screw, 1/4-20 x 3/8"
S.E. Brake Bracket (Incl.
195)
Terminal
Throttle Link
R.PM. Adjusting Lever
Screw, 114-20 x 1"
* Intake Pipe Gasket
Screw, 10-32 x 49/64"
• Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
BlowerHousing
Screw, 10-24 x 9116"
Screw, 114-20 x 1/2
Muffler
Screw, 114-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21164"
Fuel Line
Fuel LineClamp
Screw, 10-32 x 35164"
Fuel Tank (Incl. 292 &
301)
Fuel Cap
Oil Fill Tube
* =O'-Ring
"O'-Ring
Screw, 10-32 x 112"
Dipstick
Spacer
SpringClip
Lubrication Decal
Pdmer Decal
Starter Decal
Carburetor (Ind. 184)
RewindStarter
Gasket Set (Incl. Items
Marked *)
Spark Arrestor Kit (Incl.
417)(Optional)
Screw, 10-32 x 112"
(Optional)
Replacement Engine
750826A, order from 71 -
999
Replacement Short Block
750796B, order from 71-
999
RPM High 2900 to 3200
NOTE: This engine could have been built with 590694
starter
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
35

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