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HM80-155255J Page 1 of 11
Engine Parts List #1
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HM80-155255J Page 2 of 11
Engine Parts List #1
Ref # Part Number Qty Description
1 34348B Cylinder (Incl.2,20,72,72A) (3-1/8" B ore)
2 27652 Pin, Dowel
3 650820 Screw, 1/4-20 x 1/2"
4 30968 Nipple, Pipe
5 30969 Cap, Oil drain
15B 650494 Screw, 6-40 x 5/16"
15A 30700 Yoke, Governor
15 30699C Rod Assy., Governor (Incl. 15A & 15B)
16 33454 Governor Lever Assy.
17 29916 Clamp, Governor lever
18 650548 Screw, 8-32 x 5/16"
19 34663 Spring, Speed control
20 32630 Seal, Oil
25 35256A Baffle, Blower housing
26 650561 Screw, 1/4-20 x 5/8"
30 33719B Crankshaft (Incl. 108 & 109)
35 29826 Screw, 10-32 x 3/4"
36 29918 Lockwasher, # 8 E.T.
37 29216 Nut & Lockwasher, 10-32 "Keps"
37A 30322 Locknut, Hex "Keps", 8-32
38 29642 Ring, Retaining
40 34552 Piston, Pin & Ring Set (Std.) (3-1/8" )
40 34553 Piston, Pin & Ring Set (.010" OS)
40 34554 Piston, Pin & Ring Set (.020" OS)
41 34329A Piston & Pin Ass'y.(Std)(Incl.43)(3-1 /8")
41 34330A Piston & Pin Ass'y. (.010" OS)(Incl. 43)
41 34331A Piston & Pin Ass'y. (.020" OS)(Incl. 43)
42 34332 Ring Set (Std.) (3-1/8" Bore)
42 34333 Ring Set (.010" OS)
42 34334 Ring Set (.020" OS)
43 27888 Ring, Piston pin retaining
45 32591C Rod Assy., Connecting (Incl. 49)
47 650662C Bolt, Connecting rod (2 pieces)
48 34034 Lifter, Valve
49 34242 Dipper, Oil
50 34143 Camshaft (MCR)
60 33273A Extension, Blower housing
61 34126 Bracket, Grommet mounting
62 650760 Screw, 8-32 x 3/8"
63 28545 Grommet, Plastic
65 650128 Screw, 10-24 x 1/2"
69 35262 * Gasket, Cylinder cover
70 33367B Cylinder Cover (Incl. 71, 75, 80, 311 & 312)
71 33368 Bushing, Crankshaft
72 27642 Plug, Oil drain
75 31950 Seal, Oil
80 31845 Shaft, Mechanical governor
81 30590A Washer, Flat
82 30591 Gear Assy., Governor (Incl. 81)
83 30588A Spool, Governor
84 29193 Ring, Retaining
86 650833 Screw, 1/4-20 x 1-3/16"
87 650832 Screw, 1/4-20 x 1-11/16"
89 32589 Key, Flywheel
92 650815 Washer, Belleville
93 8116 Nut, Hex (1/2-20)
101 610118 Cover, Spark plug (Use as required)
103 650489 Screw, 1/4-20 x 5/8"
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HM80-155255J Page 3 of 11
Engine Parts List #1
Ref # Part Number Qty Description
108 29783 Pin, Crankshaft gear
109 33245 Gear, Crankshaft
110 34240 Ground Wire
119 34041A * Gasket, Head
120 34030A Head, Cylinder
125 27878A Exhaust Valve (Std.) (Incl. 151)
125 27880A Exhaust Valve (1/32" OS) (Incl. 151)
126 34035 Intake Valve (Std.) (Incl. 151)
126 34036 Intake Valve (1/32" OS) (Incl. 151)
127 650691 Washer (Use as req., but not w/6021A screw)
127A 26073 Washer, Flat (Use as required)
127A 650570 Washer, Flat (Use as required)
128 650690 Washer, Belleville
129 650727 Screw, 5/16-18 x 1-3/4" (Use as requi red)
130A 6021A Screw, 5/16-18 x 1-1/2" (Use as required, but do notuse with
650691 washer)
130 650694A Screw, 5/16-18 x 2" (Use as required)
131 650802 Screw, 1/4-20 x 5/8" (Use as required )
131 650737 Screw, 1/4-20 x 1/2" (Use as required )
131 650738 Screw, 1/4-20 x 5/8" (Use as required )
131A 650713 Screw, 5/16-18 x 5/8" (Use as require d)
131A 792028 Screw, 5/16-18 x 7/8" (Use as require d)
135 33636 Resistor Spark Plug (RJ17LM)
139 33369 Bracket, Governor gear
140 650836 Screw, 10-24 x 1/2"
149A 35862 Seal Assy., Intake valve
149 27882 Cap, Upper valve spring
150 27881 Spring, Valve
151 32581 Cap, Lower valve spring
169 27896A * Gasket, Breather cover
170 28423 Body, Breather
171 28424 Element, Breather
172 28425 Cover, Valve spring
173 35350 Tube, Breather
174 650128 Screw, 10-24 x 1/2"
174 650597 Screw, 10-24 x 5/8"
178 29752 Nut & Lockwasher, 1/4-28
179B 30593 Clip, Primer line (Use as required)
182 30088A Screw, 1/4-28 x 1"
184 33263 * Gasket, Carburetor
185 33877 Pipe, Intake
203 31342 Spring, Compression
204 650549 Screw, 5-40 x 7/16"
206 610973 Terminal Assy. (Use as required)
210 27793 Clip, Conduit
211 28942 Screw, 10-32 x 3/8"
223 650378 Screw, Torx T-30, 5/16-18 x 1-1/8 "
224 27915A * Gasket, Intake pipe
260 35447A Blower Housing (For electric starter)
261 650788 Screw, 5/16-18 x 3/4" (Use as require d)
262 29747B Screw, 5/16-24 x 21/32"
265 33272B Cover, Cylinder head
275C 35824 Muffler (Optional quiet muffler)
275 35056 Muffler
276 31588 Plate, Muffler locking
277 651002 Screw, 5/16-18 x 4-3/16"
277A 650696 Screw, 5/16-18x2-3/4" (Used with 276A )
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HM80-155255J Page 4 of 11
Engine Parts List #1
Ref # Part Number Qty Description
281 33013 Cover, Starter bubble
282 650760 Screw, 8-32 x 3/8"
286B 33662 Hub & Screen Assy., Starter
287 29752 Nut & Lockwasher, 1/4-28
290 29774 Fuel Line (Braided 8-1/4")(21 cm)(As req.)
290 30705 Fuel Line (Braided 16")(41 cm)(Use as req.)
290 30962 Fuel Line (Braided 32")(81 cm)(Use as req.)
292 26460 Clamp, Fuel line (Use as required)
298 650665 Screw, 1/4-15 x 7/8"
300 34156A Fuel Tank (Incl. 292 & 301) NOTE: These tanks were
builtwith different size fuel inlet openings. Tanks with the
1-3/16" I.D. opening use fuel cap 34210. Tanks with the
1-1/2" I.D. opening use fuel cap 35355.
301 410144B Fuel Cap (White Plastic)(Std)(1-1/2" I.D.)
301 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (1-3/16"
I.D.)
301 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile)
(1-3/16" I.D)
301 35355 Fuel Cap (Red plastic) (1-1/2" I.D.)
305 33893A Tube, Oil fill
306 33590 "O" Ring
310 34011A Dipstick (Incl. 306)
325 29443 Clip, Fuel line (Use as required)
325 34246 Clip, Ground wire (Use as required)
336 650765 Screw, 10-32 x 1/2"
337 35057A Cover, Carburetor
338 28942 Screw, 10-32 x 3/8"
340 34154 Plate, Fuel tank mounting
341 34155 Bracket, Fuel tank mounting
342 650561 Screw, 1/4-20 x 5/8"
359 34141 Guard, Starter
360 32576 Seal, Snow guard
364 33377 Bracket, Carburetor cover mounting
365 650767 Screw, 8-32 x 27/64"
370E 34589 Decal, Choke
370 34416 Decal, Instruction
370A 34686 Decal, Name
370C 34417 Decal, Primer
370D 34414 Decal, Warning
370J 34870 Decal, Instruction Can be used on HM80 with diecast starter.
379 631021 Inlet Needle, Seat & Clip Assy.
380 632334A Carburetor (Incl. 184) (Refer to Division 5, Section A, page
188 for breakdown or Fiche18A-1, Grid F-5)
390 590479 Rewind Starter (Refer to Division 5, Section C, page 30 for
breakdown or Fiche 18A-1, Grid G-5)
400 33279G Gasket Set (Incl. items marked*)
408 35570 Screen Seal (Can be used on HM80 with stamped steel
recoil starter)
409 35569 Spacer (Can be used on HM80 with stamped steel recoil
starter)
410 730573 Debris Screen Kit (Incl. 360, 370B, 387, 411 &413) (Can be
used on HM80 with stamped steel recoil starter)
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HM80-155255J Page 5 of 11
Engine Parts List #1
Ref # Part Number Qty Description
411 35568 Debris Screen (Can be used on HM80 with stamped steel
recoil starter)
413 650907 Screw, 5/16-18 x 1-5/8" (Can be used on HM80 with
stamped steel recoil starter)
420 730225 SAE 30, 4-Cycle Engine Oil (Quart)
421 730226 SAE 5W30, 4-Cycle Engine Oil (Quart)
425 730572 Starter Muff Kit (Incl. 370J, 426 & 4 27) (Can be used on
HM80 with die cast starter)
429 650868 Screw, 8-18 x 1-1/8" (3 Required) (Use as required) (Refer to
Mechanics Handbook for installation instructions).
430 611077 Alternator, Add on (Use as required) (Refer to Mechanics
Handbook for installation instructions).
431 590609 Centering tube (Use with engines equipped with die cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions)
431 590610 Centering tube (Use as required) (Refer to Mechanics
Handbook for installation instructions).
432 611078 A.C. Lighting Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
432 611079 D.C. Charging Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
433 590611 Alternator Shaft (4.00") (Use with engines equipped with cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
433 590636 Alternator Shaft (Use with engines equipped with stamped
steel starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
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HM80-155255J Page 6 of 11
Engine Parts List #2
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HM80-155255J Page 7 of 11
Engine Parts List #2
Ref # Part Number Qty Description
62 650760 Screw, 8-32 x 3/8"
63 28545 Grommet, Plastic
74 31855 Retainer, Bearing
97 Lockwasher, Heavy split, #10 (Buy loc ally)
131 650802 Screw, 1/4-20 x 5/8" (Use as required )
131 650737 Screw, 1/4-20 x 1/2" (Use as required )
131 650738 Screw, 1/4-20 x 5/8" (Use as required )
174 650128 Screw, 10-24 x 1/2"
174 650597 Screw, 10-24 x 5/8"
227 730127 Air Cleaner Ass'y. (Incl.238,239,240,241,243,245 & 370)
(Use as required)
227 730164 Air Cleaner Ass'y. (Incl. 238, 239, 240, 241, 243 & 245) (Use
as required)
228A 650824 Stud, 1/4-20 x 7.33 (Use as required)
228A 650851 Stud, 1/4-20 x 8.1 (Use as required) (Used with drilled thru
elbow)
245A 34700 Element, Air cleaner
274 35865 Gasket, Exhaust (Use as required)
275B 391026 Muffler (Incl. 284, 284A & 416A) (This spark arresting muffler
can be used on any model.)
275C 35824 Muffler (Optional quiet muffler)
277 651002 Screw, 5/16-18 x 4-3/16"
277A 650696 Screw, 5/16-18x2-3/4" (Used with 276A )
292 26460 Clamp, Fuel line (Use as required)
298 650665 Screw, 1/4-15 x 7/8"
369 35857 Valve, Fuel shut-off
370J 34870 Decal, Instruction Can be used on HM80 with diecast starter.
370B 34387 Decal, Instruction Can be used on HM80 with stamped steel
recoil starter.
395 33329D Starter Motor Kit (110-120 Volt) This 110-120 volt starter
motor kit may have been added to this engine. It can be
added only if cylinder hasdrilled and tapped starter mounting
bosses and a ring gear flywheel. Refer to service number
stamped on end cap of motor, or on decal for identification.
Ref
408 35570 Screen Seal (Can be used on HM80 with stamped steel
recoil starter)
409 35569 Spacer (Can be used on HM80 with stamped steel recoil
starter)
410 730573 Debris Screen Kit (Incl. 360, 370B, 387, 411 &413) (Can be
used on HM80 with stamped steel recoil starter)
411 35568 Debris Screen (Can be used on HM80 with stamped steel
recoil starter)
413 650907 Screw, 5/16-18 x 1-5/8" (Can be used on HM80 with
stamped steel recoil starter)
415 730130 Exh.Adapter Kit (Incl.274,277)(Use as req.)
425 730572 Starter Muff Kit (Incl. 370J, 426 & 4 27) (Can be used on
HM80 with die cast starter)
429 650868 Screw, 8-18 x 1-1/8" (3 Required) (Use as required) (Refer to
Mechanics Handbook for installation instructions).
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HM80-155255J Page 8 of 11
Engine Parts List #2
Ref # Part Number Qty Description
430 611077 Alternator, Add on (Use as required) (Refer to Mechanics
Handbook for installation instructions).
431 590609 Centering tube (Use with engines equipped with die cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions)
431 590610 Centering tube (Use as required) (Refer to Mechanics
Handbook for installation instructions).
432 611078 A.C. Lighting Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
432 611079 D.C. Charging Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
433 590611 Alternator Shaft (4.00") (Use with engines equipped with cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
433 590636 Alternator Shaft (Use with engines equipped with stamped
steel starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
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HM80-155255J Page 9 of 11
Engine Parts List #3
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HM80-155255J Page 10 of 11
Engine Parts List #3
Ref # Part Number Qty Description
62 650760 Screw, 8-32 x 3/8"
103 650489 Screw, 1/4-20 x 5/8"
156 610848 Magneto (w/ring gear for 110 volt sta rter) NOTE: The
complete magneto is not available as an assembly. The
magneto number is shown for reference purposes only. Order
component parts individually, as shown in parts list. (Refer to
Division 5, Section B, page 28 for breakdown or Fiche 18A-1,
Grid G
183 34587 Bracket, Choke
186 34667 Link, Governor
200A 34664 Control Bracket (Incl.19,203,204,206, 209)
203 31342 Spring, Compression
204 650549 Screw, 5-40 x 7/16"
206 610973 Terminal Assy. (Use as required)
207 33878 Link, Governor-to-throttle
209 650821 Screw, 10-32 x 1/2"
210 27793 Clip, Conduit
211 28942 Screw, 10-32 x 3/8"
219 34586 Rod, Choke
220 35438 Knob, Control
222 28820 Screw, 10-32 x 1/2"
260 35447A Blower Housing (For electric starter)
275C 35824 Muffler (Optional quiet muffler)
277A 650696 Screw, 5/16-18x2-3/4" (Used with 276A )
286B 33662 Hub & Screen Assy., Starter
290 29774 Fuel Line (Braided 8-1/4")(21 cm)(As req.)
290 30705 Fuel Line (Braided 16")(41 cm)(Use as req.)
290 30962 Fuel Line (Braided 32")(81 cm)(Use as req.)
301 410144B Fuel Cap (White Plastic)(Std)(1-1/2" I.D.)
301 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (1-3/16"
I.D.)
301 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile)
(1-3/16" I.D)
301 35355 Fuel Cap (Red plastic) (1-1/2" I.D.)
313A 33876 Gasket, Stator
339 35038 Spacer, Tank
341 34155 Bracket, Fuel tank mounting
342 650561 Screw, 1/4-20 x 5/8"
350 570682 Primer Assy.
351 32180C Primer Line
370B 34387 Decal, Instruction Can be used on HM80 with stamped steel
recoil starter.
370J 34870 Decal, Instruction Can be used on HM80 with diecast starter.
377 30547A Contact Assy., Breaker
378 30548B Condenser
408 35570 Screen Seal (Can be used on HM80 with stamped steel
recoil starter)
409 35569 Spacer (Can be used on HM80 with stamped steel recoil
starter)
410 730573 Debris Screen Kit (Incl. 360, 370B, 387, 411 &413) (Can be
used on HM80 with stamped steel recoil starter)
411 35568 Debris Screen (Can be used on HM80 with stamped steel
recoil starter)
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HM80-155255J Page 11 of 11
Engine Parts List #3
Ref # Part Number Qty Description
413 650907 Screw, 5/16-18 x 1-5/8" (Can be used on HM80 with
stamped steel recoil starter)
425 730572 Starter Muff Kit (Incl. 370J, 426 & 4 27) (Can be used on
HM80 with die cast starter)
429 650868 Screw, 8-18 x 1-1/8" (3 Required) (Use as required) (Refer to
Mechanics Handbook for installation instructions).
430 611077 Alternator, Add on (Use as required) (Refer to Mechanics
Handbook for installation instructions).
431 590609 Centering tube (Use with engines equipped with die cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions)
431 590610 Centering tube (Use as required) (Refer to Mechanics
Handbook for installation instructions).
432 611078 A.C. Lighting Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
432 611079 D.C. Charging Connector (Use as required) (Refer to
Mechanics Handbook for installation instructions).
433 590611 Alternator Shaft (4.00") (Use with engines equipped with cast
aluminum starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
433 590636 Alternator Shaft (Use with engines equipped with stamped
steel starter)(Use as required) (Refer to Mechanics
Handbook for installation instructions).
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