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PARTS LIST FOR 281707-0411-01 ENGINE
FOR MODEL MTD7122BO9 LAWN TRACTOR
.--,--
PART
NO.
DESCRIPTION
DESCRIPTION
-~ -
1
2
3
5
7
8
9
1011
12
45
46
52
78
94
95
98
91920
*271996
99
101
104
108
118
121
123
125
126
127
128
130
131
132
133
134
136
137
138
141
142
147
171
186
187
188
201
209
219
26157
93043
t230896
222010
396568
394698
93357
490472
490473
t221997
211960
222433
491006
211712
299707
t394681
221995t270511
t222014
390684
t299740
t231323
281051
67218
393815
93535
262348
260695
490815
*271997
13
93723
15
16
91084
490466
18
20
22
23
490452
291675
94305
492326
24
25
222698
394661
394662
394663
394664
26
394665
391781
391782
391783
260924
299691
27
28
224
225
227
230
94018
231058
490927
222450
391"Q6
29
490348
232
240
257
265
284
304
305
260584
298090
93543
221535
93572
490689
93158
! REF.: PART 'j
- --:---~r .. NO.1 NO. I
41 2~200--~~
1 Rot~~Exhaust Valve 42 93630 Retainer-Exhaust Valve
, Rotocoil (2)
I 262248 I Tappet-Valve
212897 Gear-Cam
-270872 G.asket-Carburetor Mounting
93805 Screw-Sem
t292681 Valve Assembly-Carburetor Idle
93499 Screw- Throttle and Choke
Valve Mounting Sem
Screw-Machine Fill. Hd.
8-32 x 5/8"
Spring-Throttle Adjustment
Pin-Throttle Stop
Pin-Float Hinge
Valve Choke
Valve-Needle
Carburetor Overhaul Kit
Screw-Carburetor Mounting
Carburetor Assembly
Body Assembly Carburetor
Plug-Welch
Venturi-Carburetor
Valve-Throttle
Shaft and Lever- Throttle
Stop-Throttle
Float-Carburetor
Valve-Fuel Inlet
Bowl-Float
Gasket-Float Bowl
Washer-Float Bowl
Shaft and Lever-Choke
Nozzle-Carburetor
Screw-Nozzle
Nut-Air Cleaner Mounting
Connector-Fuel Pipe
Line-Fuel
Screw-Sem (3/4" Long)
Link-Governor
Spring-Governor
Oil Slinger. Governor Gear
and Bracket Assembly
Screw-Sem
Crank-Governor (V4" Dia.)
Lever Assembly-Governor
Washer-Governor Crank
(V4" 1.0.)
Spring-Governor Link
Filter-Fuel
Screw-Control Casing
Clamp-Casing
Screw-Clamp Mtg.
Housing-Blower
Screw-Blower Housing
Mounting Sem
Shield-Cylinder
Screw-Cylinder Shield
Mounting Sem
31
32
33
34
35
36
37
40
222299
92909
262246
262247
65906
26828
223752
221596
490450 Cylinder Assembly
399265 Bearing-Cylinder
391086 Seal-Oil
491491 Head-Cylinder
-271866 Gasket-Cylinder Head
391406 Breather Assembly
*27803
I Gasket-Valve Cover
93394 Screw-Sem
280100 Tube-Breather
-271916 Gasket-Crankcase Cover-
1/64" Thick
Gasket-Cranl<case Cover-
.005" Thick
Gasket-Crankcase Cover-
.009" Thick
Screw-Cylinder Head
(3" long)
Plug-Oil Drain
Crankshaft
Note: Order Part Number
94196 for Timing Gear
Key.
Base-Engine
Seal-Oil
Screw-Base Mounting Sem
Flywheel and Ring Gear
Assembly-Magneto
Key-Flywheel
Piston Assembly-Standard
Piston Assembly-.010" O.S.
Piston Assembly-.020" O.S.
Piston Assembly-.030" O.S.
PISTON RING SET
l-Jote: For Chrome Ring Set-
Standard Size-Order No.
392331.
Ring Set-Piston-Standard
Ring Set-Piston-.010" O.S.
Ring Set-Piston-.020" O.S.
Ring Set-Piston-.030" O.S.
Lock-Piston Pin
Pin Assembly-Piston-
Standard
Pin Assembly-Piston-
.005" O.S.
Rod Assembly-Connecting
Note: For Connecting Rod
with .020" Undersize
Crankpin Bore-Order No.
490469
Lock-Connecting Rod Screw
Screw-Connecting Rod
Valve-Exhaust
Valve-Intake
Spring-Intake Valve
Spring-Exhaust Valve
Guard-Flywheel
Retainer-Intake Valves
306
307
223715
93163
38