PARTS BREAKDOWN
EM4251
1 of 16
06/10/2010
Tech Bulletin Fig. No. Part No.
Description
Q'ty Unit
84
521-90020-00
STAND SET, RBC230
1
85
014-00594-80
SCREW M5X14, EH561
2
86
592-20030-00
CRANKSHAFT ASS'Y, EM4251
1
87
044-01299-60
OIL SEAL (L), EM4251
1
88
044-01099-70
OIL SEAL (S), EM4251
1
89
542-15005-00
CLIP, EM4251
1
90
592-25009-00
PISTON, EM4251
1
91
592-20040-00
PISTON RING SET, EM4251
1
92
056-50899-70
CLIP, RST250
2
93
523-25026-00
PISTON PIN, RST250
1
94
592-15014-00
SPACER, EM4251
2
95
592-35000-01
CAM LIFTER, EM4251
2
Y04257
96
593-30030-00
CAM GEAR ASSEMBLY, EM4250
1
96
592-30070-00
CAM GEAR ASS'Y, EM4251
1
97
592-35005-01
CAM GEAR SHAFT, EM4251
1
98
592-35006-00
CAM LIFTER SHAFT, EM4251
1
99
592-35007-00
PUSH ROD, EM4251
2
Y04529
100
593-30020-00
ROCKER ARM ASS'Y, BHX2500
2
100
592-30020-00
ROCKER ARM ASS'Y. EM4251
2
Y04529
101
593-35001-00
ROCKER SHAFT, BHX2500
1
101
592-35011-01
ROCKER SHAFT, EM4251
1
102
592-35012-00
VALVE SPRING, EM4251
2
103
592-35013-00
SPRING RETAINER, EM4251
2
104
592-35014-00
EXHAUST VALVE, EM4251
1
105
592-35015-00
INTAKE VALVE, EM4251
1
106
592-50010-02
STARTER COVER ASS'Y, EM4251
1
106
592-50010-01
STARTER COVER ASS'Y, EM4251
1
107
592-50010-30
REEL, EM4251
1
108
519-50020-60
SET SCREW, RBC201
1
109
521-50020-30
SPIRAL SPRING, RBC230
1
110
519-50021-10
COLLAR, RBC201
1
111
519-50021-00
SWING ARM, RBC201
1
112
592-50010-50
STARTER ROPE, EM4251
1
113
522-50040-20
STARTER KNOB, RBC221
1
114
519-55000-00
PULLEY, RBC201
1
115
004-36042-50
SCREW ASS'Y M4X25, RBC201
2
116
023-00499-40
SPACER, EM4251
2
117
592-95008-00
TANK GUARD, EM4251
1
118
004-36051-00
SCREW ASSEMBLY, EH450
2
119
624-95011-01
MODEL LABEL, EM4251
1
119
624-95011-00
MODEL LABEL, EM4251
1
Y04529
120
592-60090-00
CARBURETOR, EM4250
1
120
592-60080-00
CARBURETOR, EM4251
1
Y04529
121
592-60021-40
PUMP BODY ASS'Y, EM4251
1
121
592-60020-60
PUMP BODY ASS'Y, EM4251
1
122
523-60461-40
AIR PURGE BODY ASS'Y, EM4251
1
123
523-60460-50
PRIMER PUMP COVER, EM4251
1
124
524-60011-50
PRIMER PUMP, RBC230
1
125
592-60080-10
METERING DIAPHRAGM, EM4251
1
126
523-60460-40
METERING DIAPHRAGM GASKET,RBC260
1
127
524-60010-40
PUMP DIAPHRAGM, RBC230
1
PARTS BREAKDOWN
EM4251
rev 0_07/01/2010
Page 15 of 18
PB 06-2010_rev 0
