Sears 143.974506, 917.38783 owner manual KEY Part NO. no Description, Mcr

CRAFTSMAN 4=CYCLE ENGBNE MODELNUMBER143.974506

KEY PART									KEY	PART
NO. NO.		DESCRIPTION							NO.	NO.		DESCRIPTION
1	36774	Cylinder		(Incl. 2 & 20)					184	26756		* Carburetor			To Intake Pipe Gasket
2	26727
		Dowel	Pin						185	36785		Intake	Pipe
6	33734	Breather		Element					186	87-138		Governor		Link
7	36557	BreatherAss'y,, (Incl. 6 & 12A)							!89	650839		Screw,	I/4-20			x 3/8"
12	36775
		Breather		Tube					191	36559		S..E. Brake			Bracket (incL 195)
12A	36558	Breather		Cover		& Tube (incL 12B)			195	610973		Terminal
12B	36694	Breather		Tube Elbow					207	34336		Throttle	Link
14	28277	Washer							209	30200		Screw,	10-24 x 9/t 6"
15	30589	Governor		Rod (Inclo 14)					215	32410		Control	Knob
16	34839A	Governor		Lever					216	33086		R.P,M	Adjusting				Lever
17	31335
		Governor		Lever		Clamp			223	650451
												Screw,	1/4-20			x 1"
!8	651018	Screw, Torx T-15, 8-32 x 19/64"							224	36786		* Intake	Pipe Gasket
19	36281	Extension		Spring					238	650932		Screw,	10-32 x 49/64"
20	32600	Oil Seal							239	34338		* Air Cleaner			Gasket
30	36793	Crankshaft							24!	35797		Air Cleaner			Collar
40	40004	Piston,	Pin & Ring Set (Std.)						245	35066		Air Cleaner			Filter
40	40005	Piston,	Pin & Ring Set (o010" OS)						250	35065		Air Cleaner			Cover
41	36070	Piston	& Pin Ass'y. (Std) (lnclo 43)						260	36980		Blower	Housing
41	36071	Piston	& Pin Ass'y,						261	30200		Screw,	10-24 x 9/16"
42	40006	(.010" OS)			(incL 43)				262	650831		Screw,	1/4-20 x 1/2"
		Ring Set		(Std.)					275	36790		Muffler	(Incl. 277)
42	40007	Ring Set		(,,010" OS)					277	650988
								Ring				Screw,	I/4-20			x 2-5/16"
43	20381	Piston	Pin Retaining						285	35000A		Starter	Cup
45	36777	Connecting			Rod Ass'y.(lncl. 46)				287	650926
												Screw,	8-32 x 21/64"
46	32610A	Connecting			Rod Bolt				290	29774		Fuel Line
48	27241	Valve Lifter							292	26460		Fuel Line Clamp
50	36778	Camshaft		(MCR)					298	28763
												Screw,	10-32 x 35/64"
52	29914	Oil Pump		Ass'y.					300	36916		Fuel Tank (Incl. 292 & 301)
69	35261	* Mounting		Flange			Gasket		301	36246
												Fuel Cap
70	34311D	Mounting		Flange			(Incl. 72 thru 83)		305	35647		Oil Fill Tube
72	36083	Oil Drain		Plug					306	36832		* "O"-Ring
75	27897	Oil Seal							307	35499		"O"-Ring
80	30574A	Governor		Shaft					309	650562		Screw,	10-32 x 1/2"
81	30590A
		Washer							310	35648		Dipstick
82	30591	Governor		Gear Ass'yo(Incl.. 8!)					313	34080
												Spacer
83	30588A	Governor		Spool					370A	36261					Decal
												Lubrication
86	650488	Screw,	1/4-20 x '1-1/4"						370C	36861		Primer	Decal
89	6'I'I004	Flywheel		Key					370K	36695		Starter	Decal
90	611112	Flywheel							380	640026		Carburetor			(tncl.		t84)
92	650815	Bellevitle		Washer					390	590694		Rewind	Starter
93	650816	Flywheel		Nut					400	36792		Gasket	Set
100	34443A	Solid State			Ignition							(Incl. Items			Marked * in Notes)
10I	610118	Spark	Plug		Cover				4t6	36085		Spark Arrestor				Kit
103	651007						10-24 x 15/16"
		Screw, Torx T-15,										(fnclo 417)(Optionaf)
110	34961	Ground	Wire						417	650760
												Screw, 8-32 x 3/8" (Optional)
119	36787
		* Cylinder		Head Gasket					900			Replacement				Engine NONE
120	36788	Cylinder		Head					900
												Replacement				S/B 750796,
125	36779	Exhaust		Valve		(Std)		(IncL 15t)
												order from 71-999
125	36780	Exhaust		Valve								RPM High 2900 to 3200
		(1t32"	OS)(Incl,,			151)
126	36781											RPM Low 2450					to 2750
		Intake Valve (Std.) (Incl. 151)
!26	36782	Intake	Valve (1/32" OS) (Incl. 15!)						(NOTE: This engine could have been built with 590737
130	6021A	Screw, 5/16-18 x 1-1/2"
									starter.. Refer to the design of the rope pulley strength
135	35395	Resistor		Spark		Plug (RJ19LM)
									ribs for part		identification Individual starter parts do not
150	35991	Valve	Spring
									interchange		)
151	31673	Valve	Spring Cap
151A 40017		Intake	Valve Seal						Incl. Part #'s26756			(1),28833		(I),		36832 (1), 34338 (1),
169 36783		* Valve	Cover Gasket
									35261 (t), 36783 (1), 36786 (1), 36787 (1)
172	36784	Valve	Cover
174	30200	Screw.	I0-24 x 9/16"						NOTE: All component dimensions given in U,S., inches
!78	29752	Nut & Lock Washer,						1/4-28
									1 inch = 254		mm
182	6201	Screw,	1/4-28 x 7/8"

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