
6
TO CONVERT TO DIS CHARG ING
MOWER
Your mower is shipped ready to be used
as a mulcher. To convert to bagging or
discharging:
• Lift discharge guard and remove
mulcher plate.
• Mower can now be used for side dis-
charge or optional grass catcher can be
attached.
• To return to mulching operation, sim ply
reinstall mulcher plate as shown.
CAUTION
: Do not run your lawn mower
with out discharge guard, ap proved grass
catcher or mulcher plate in place.
Hooks
Housing
opening
Mulch plate
Hinge rod
Tab
Discharge
guard
The operation of any lawn
mower can result in foreign
objects thrown into the
eyes, which can result in
severe eye damage. Always
wear safety glasses or eye shields while
operating your lawn mower or performing
any ad just ments or repairs. We recom-
mend standard safety glasses or a wide
vision safety mask worn over spectacles.
HOW TO USE YOUR LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory
for optimum per for mance. Speed is not
adjustable.
ENGINE ZONE CONTROL
CAUTION:
Federal reg u la tions require
an engine control to be installed on this
lawn mower in order to minimize the
risk of blade contact injury. Do not un der
any cir cum stanc es attempt to de feat the
function of the operator con trol. The blade
turns when the engine is running.
• Your lawn mower is equipped with an
operator pres ence control bar which
requires the operator to be positioned
behind the lawn mower handle to start
and operate the lawn mower.
TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower wheels
for high cut, adjust cutting height to suit
your requirements. Me di um position is
best for most lawns.
• To change cutting height, squeeze ad-
juster lever to ward wheel. Move wheel
up or down to suit your re quire ments.
Be sure all wheels are in the same set-
ting.
NOTE:
Adjuster is properly positioned
when plate tab inserts into hole in lever.
Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the
plate tabs.
LEVER BACKWARD
TO LOWER MOWER
LEVER FORWARD TO RAISE MOWER
Plate
tab
Lever
19
MODEL NUMBER 143.044500
CRAFTSMAN 4-CYCLE ENGINE
KEY PART
NO. NO. DESCRIPTION
1 37791 Cylinder (Includes Key #2 and 20)
2 26727 Dowel Pin
6 33734 Breather Element
7 36557 Breather Assembly
(Includes Key Numbers 6 and 12A)
12 32447 Breather Tube
12A 36558 Breather Cover & Tube
12B 36694 Breather Tube Elbow
14 28277 Washer
15 30589 Governor Rod (Includes Key #14)
16 34839A Governor Lever
17 31335 Governor Lever Clamp
18 651018 Screw, T-15 #8-32 x 19/64"
19 33578 Extension Spring
20 32600 Oil Seal
30 37804 Crankshaft
40 40053 Piston, Pin & Ring Set (Standard)
41 40051 Piston & Pin Asssembly (Standard)
(Includes Key Number 43)
42 40022 Ring Set (Standard)
43 20381 Piston Pin Retaining Ring
45 30963B Connecting Rod Assembly
(Includes Key Number 46)
46 32610A Connecting Rod Bolt
48 27241 Valve Lifter
50 37575 Camshaft (NCR)
(Includes Key Number 104)
52 29914 Oil Pump Assembly
69 37609 * Mounting Flange Gasket
70 37608 Mounting Flange (Includes Key
#72 thru 83, 306, 309A and 311A)
72 37614 Oil Drain Plug
72A 28534 Oil Drain Plug
75 27897 Oil Seal
80 30574A Governor Shaft
81 30590A Washer
82 30591 Governor Gear Assembly
(Includes Key Number 81)
83 30588A Governor Spool
86 650488 Screw 1/4-20 x 1-1/4"
89 611298 Flywheel Key
90 611299 Flywheel
92 650815 Belleville Washer
93 650816 Flywheel Nut
100 34443C Solid State Ignition
101 610118 Spark Plug Cover
103 651007 Screw, T-15 #10-24 x 15/16"
104 37480 Cam Bushing
110 37047 Ground Wire
119 37755 * Cylinder Head Gasket
120 37807 Cylinder Head
125 37806 Exhaust Valve (Standard Size)
(Includes Key Number 151)
126 37805 Intake Valve (Standard Size)
(Includes Key Number 151)
130 6021A Screw 5/16-18 x 1-1/2"
135 35395 Resistor Spark Plug (RJ19LM)
150 31672 Valve Spring
151 31673 Valve Spring Cap
151A 40016A Intake Valve Seal
169 36783 * Valve Cover Gasket
172 36784 Valve Cover
174 30200 Screw #10-24 x 9/16"
178 29752 Nut and Lock Washer 1/4-28
182 6201 Screw 1/4-28 x 7/8"
184 26756 * Gasket, Carburetor to Intake Pipe
KEY PART
NO. NO. DESCRIPTION
185 37794 Intake Pipe
186 32653 Governor Link
189 650839 Screw 1/4-20 x 3/8"
191 36559A S.E. Brake Bracket
(Includes Key Number 195)
195 610973 Terminal
207 34336A Throttle Link
216 33086 R.P.M. Adjusting Lever
223 650451 Screw 1/4-20 x 1"
224 37793 * Intake Pipe Gasket
238 650932 Screw #10-32 x 49/64"
239 34338 * Air Cleaner Gasket
241 35797 Air Cleaner Collar
245 35066 Air Cleaner Filter
250 35065 Air Cleaner Cover (Craftsman)
260 36980B Blower Housing
261 30200 Screw #10-24 x 9/16"
262 650831 Screw 1/4-20 x 1/2"
275 37498 Muffl er
275A 36838A Spark Arrestor Muffl er (Optional)
(Includes Key Numbers
284, 284A, 416 and 417)
277 650988 Screw 1/4-20 x 2-5/16"
279 28763 Screw #10-32 x 39/64"
280 37717 Heat Shield
284 36663 Muffl er Defl ector (Optional)
(Includes Key Number 284A)
284A 650821 Screw #10-32 x 1/2" (Optional)
285 35000A Starter Cup
287 650926 Screw #8-32 x 21/64"
290 29774 Fuel Line
292 26460 Fuel Line Clamp
298 28763 Screw #10-32 x 39/64"
300 36916 Fuel Tank (Includes Key #292, 301)
301 37844 Fuel Cap
305 35647A Oil Fill Tube (Includes Key #306)
306 37610 “O” Ring
307 35499 “O” Ring
309 650562 Screw #10-32 x 1/2"
309A 650783 Screw #10-24 x 3/4"
310 35648 Dipstick
311A 37611 Hold Down Bracket
313 34080 Spacer
370 37269 Name Decal
370C 37318 Primer Decal (3X)
370K 36695 Starter Decal
370R 37849 Warning Decal
380 640339 Carburetor (Includes Key #184)
390 590737 Rewind Starter
400 37809 Gasket Set
(Includes All Items Marked * )
416 37530 Spark Arrestor Kit (Optional)
(Includes Key Number 417)
417 650821 Screw #10-32 x 1/2" (Optional)
900 750884 Replacement Engine
(order from 71-999)
900 750885 Replacement Short Block
(order from 71-999)
RPMs: High 2900 to 3200
NOTE:
This engine could have been built with
Recoil Starter #590694.
NOTE:
All component dimensions given in U.S. inches
1 inch = 25.4 mm