Page 1
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HM100-159077G Page 1 of 11
Engine Parts List #1
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HM100-159077G Page 2 of 11
Engine Parts List #1
Ref # Part Number Qty Description
1 34922A Cylinder (CI liner)(3-5/16")(Incl.2,2 0 & 72)
2 27652 Pin, Dowel
15 30699C Rod Assy., Governor (Incl. 15A & 15B)
15A 30700 Yoke, Governor
15B 650494 Screw, 6-40 x 5/16"
16 33454 Governor Lever Assy.
17 29916 Clamp, Governor lever
18 650548 Screw, 8-32 x 5/16"
20 32630 Seal, Oil
25 35256A Blower Housing Baffle (With electric starter knockout) (Use
as required)
25 29536 Blower Housing Baffle (Without electric starter knockout)
(Use as required)
26 650561 Screw, 1/4-20 x 5/8"
30 33365B Crankshaft (Incl. 108 & 109)
35 29826 Screw, 10-32 x 3/4"
36 29918 Lockwasher, #8 E.T.
37A 30322 Nut & Lockwasher, 8-32
37 29216 Locknut, 10-32
38 29642 Ring, Retaining
40 34860A Piston, Pin & Ring Set (Std.)(3-5/16" )
40 34861A Piston, Pin & Ring Set (.010" OS)
40 34862A Piston, Pin & Ring Set (.020" OS)
41 34863 Piston & Pin Ass'y. (Std.)(3-5/16")(I ncl.43)
41 34864 Piston & Pin Ass'y. (.010" OS) (Incl. 43)
41 34865 Piston & Pin Ass'y. (.020" OS) (Incl. 43)
42 34866A Ring Set (Std.) (3-5/16" Bore)
42 34867A Ring Set (.010" OS)
42 34868A Ring Set (.020" OS)
43 27888 Ring, Piston Pin retaining
45 32591C Rod Assy., Connecting (Incl. 46, 47 & 49)
46 650662C Bolt, Connecting rod (2 pieces)
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, Flange
70 33367B Cover, Cylinder (Incl. 71, 75 & 80)
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 (Use as requir ed)
87 650832 Screw, 1/4-20 x 1-11/16" (Use as requ ired)
89 32589 Key, Flywheel
92 650815 Washer, Belleville
93 8116 Nut, Hex
101 610118 Cover, Spark plug
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HM100-159077G Page 3 of 11
Engine Parts List #1
Ref # Part Number Qty Description
103 650516 Screw, 1/4-20 x 1-1/8"
108 29783 Pin, Crankshaft gear (Only serviceable when gear is pinned
to crank.)
109 33245 Gear, Crankshaft
110 34240 Ground Wire
119 34923A * Gasket, Cylinder 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 (Do not use with No. 6021A scr ew.)
128 650690 Washer, Belleville (Use as required)
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
130 6021A Screw, 5/16-18 x 1-1/2" (Use as required, but do notuse No.
650691 washer.)
130 650711 Screw, 5/16-18 x 1-5/8 " (Use as required) (Can use 6021A
but discard 650691 washer.)
130 650694A Screw, 5/16-18 x 2" (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"
133 650890 Washer, Internal Lock
135 33636 Resistor Spark Plug
139 33369 Bracket, Governor gear
140 650836 Screw, 10-24 x 1/2"
149A 35862 Seal Assy., Intake valve
150 27881 Spring, Valve
151 32581 Cap, Lower valve spring
169 27896A * Gasket, Breather
170 28423 Body, Breather
171 28424 Element, Breather
172 28425 Cover, Breather
173 35350 Tube, Breather
174 650128 Screw, 10-24 x 1/2"
178 29752 Nut & Lockwasher, 1/4-28
182 30088A Screw, 1/4-28 x 1"
183 34587 Bracket, Choke
184 33263 * Gasket, Carburetor
185 33877 Pipe, Intake
186 34667 Link, Governor lever
200 34664 Control Bracket (Incl.19,203, 204, 20 6 & 209)
203 31342 Spring, Compression
204 650549 Screw, 5-40 x 7/16"
206 610973 Terminal Assy.
207 33878 Link, Governor lever-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
222A Pop Rivet (Can be purchased locally)
222 28820 Screw, 10-32 x 1/2"
223 650378 Screw, Torx T-30, 5/16-18 x 1-1/8"
224 27915A * Gasket, Intake pipe
260 34822A Blower Housing
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HM100-159077G Page 4 of 11
Engine Parts List #1
Ref # Part Number Qty Description
261 650788 Screw, 5/16-18 x 3/4"
262 29747B Screw, 5/16-24 x 21/32"
265 33272B Cover, Cylinder head
275 33280A Muffler
276 31588 Plate, Muffler locking
276 35741 Plate, Muffler locking
277 650729 Screw, 5/16-18 x 3-3/16" (Use as requ ired)
277 651002 Screw, 5/16-18 x 4-1/4" (Use as requi red)
285A 33662 Hub & Screen Assy.
287 29752 Nut, 1/4-28
290 29774 Fuel Line (Braided 8-1/4")(21cm)(As r equired)
290 30962 Fuel Line (Braided 32")(80cm)(As requ ired)
291 30705 Fuel Line (Braided 16")(40cm)(As requ ired)
292 26460 Fuel Line Clamp (Use as required)
295 32961 Valve, Fuel shut-off
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.
301A 410144B Fuel Cap (White Plastic)(Standard) (Use as required) (1.5"
I.D.)
301A 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (Use as
required) (1.5" I.D.)
301A 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile) (Use
as required) (1.5" I.D.)
301A 35355 Fuel Cap (Red Plastic)(1.75" I.D.)
305 33893A Oil Fill Tube
307 33590 "O" Ring
310 34011A Dipstick (Incl. 307)
336 650765 Screw, 10-32 x 1/2"
337 34666 Cover, Carburetor
338 28942 Screw, Sems 10-32 x 3/8"
338A 31291 Plug, Cover
340 34154 Plate, Upper fuel tank mtg.
341 34155 Bracket, Lower fuel tank mtg.
342 650561 Screw, 1/4-20 x 5/8"
359 34141 Guard, Starter
360 32576 Seal, Snow Guard
361 30063 Screw, Torx T-30, 1/4-20 x 1/2"
365 650767 Screw, 8-32 x 27/64"
370C 34589 Decal, Choke
370A 34686 Decal, Name
370D 34144 Decal, Primer
370 34346 Decal, Instruction
370 35274 Decal, Instruction
379 631021 Inlet Needle, Seat & Clip Assy.
380 632110 Carburetor (Incl. 184 & 379) (Refer to Division 5, Section A,
page 168 for breakdown or Fiche18B, Grid E-9)
395 35763A Electric Starter Motor (12 Volt) (Refer to service number
stamped on end cap of motor, or on decal, for identification.
Refer to Division 5, Section D for breakdown or Fiche 18B,
Grid G-6)
400 33279G * Gasket Set (Incl. items marked *)
420 730225 SAE 30 4-Cycle Engine Oil (Quart)
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HM100-159077G Page 5 of 11
Engine Parts List #1
Ref # Part Number Qty Description
421 730226 SAE 5W30 4-Cycle Engine Oil (Quart)
422 35824 Muffler Optional
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HM100-159077G Page 6 of 11
Engine Parts List #2
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HM100-159077G Page 7 of 11
Engine Parts List #2
Ref # Part Number Qty Description
37A 30322 Nut & Lockwasher, 8-32
62 650760 Screw, 8-32 x 3/8"
63 28545 Grommet, Plastic
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
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"
222A Pop Rivet (Can be purchased locally)
274 35865 Gasket, Exhaust
275 33280A Muffler
277 650729 Screw, 5/16-18 x 3-3/16" (Use as requ ired)
277 651002 Screw, 5/16-18 x 4-1/4" (Use as requi red)
285A 33662 Hub & Screen Assy.
290 29774 Fuel Line (Braided 8-1/4")(21cm)(As r equired)
290 30962 Fuel Line (Braided 32")(80cm)(As requ ired)
292 26460 Fuel Line Clamp (Use as required)
295 32961 Valve, Fuel shut-off
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.
301A 410144B Fuel Cap (White Plastic)(Standard) (Use as required) (1.5"
I.D.)
301A 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (Use as
required) (1.5" I.D.)
301A 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile) (Use
as required) (1.5" I.D.)
301A 35355 Fuel Cap (Red Plastic)(1.75" I.D.)
337 34666 Cover, Carburetor
338A 31291 Plug, Cover
341 34155 Bracket, Lower fuel tank mtg.
342 650561 Screw, 1/4-20 x 5/8"
350 570682 Primer Assy.
351 32180C Line, Primer
370D 34144 Decal, Primer
414 33323 Opt.Muffler Screen (Mini-Bike applica tion)
415 730130 Kit, Exhaust adapter (Incl. 274 & 277 )
418 33700 Cover & Tube, Muffler (use as require d)
419 650578 Screw, 8-18 x 3/8" (use as required)
421 730226 SAE 5W30 4-Cycle Engine Oil (Quart)
422 35824 Muffler Optional
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HM100-159077G Page 8 of 11
Engine Parts List #3
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HM100-159077G Page 9 of 11
Engine Parts List #3
Ref # Part Number Qty Description
37A 30322 Nut & Lockwasher, 8-32
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
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"
183 34587 Bracket, Choke
200B 730152 Control Bracket (Incl.1158-1171)(As r eq.)
203 31342 Spring, Compression
204 650549 Screw, 5-40 x 7/16"
210 27793 Clip, Conduit
211 28942 Screw, 10-32 x 3/8"
222 28820 Screw, 10-32 x 1/2"
222A Pop Rivet (Can be purchased locally)
227 730127 Air Cleaner Ass'y. (Incl. 238, 239, 242, 246, 250) (Use as
required)
285A 33662 Hub & Screen Assy.
290 29774 Fuel Line (Braided 8-1/4")(21cm)(As r equired)
290 30962 Fuel Line (Braided 32")(80cm)(As requ ired)
291 30705 Fuel Line (Braided 16")(40cm)(As requ ired)
293 33715 Impulse Fuel Pump NOTE: 34385 and 33715 (WIP)pumps
are replaced by 35813 and 35800 (WIP) pumps. The 33010
(3000 series) repair kit is still available. The 35791 repair kit
is used with the 35813 and 35800 fuel pumps.
294 35791 Fuel Pump Repair Kit NOTE: 34385 and 33715 (WIP)pumps
are replaced by 35813 and 35800 (WIP) pumps. The 33010
(3000 series) repair kit is still available. The 35791 repair kit
is used with the 35813 and 35800 fuel pumps.
301A 410144B Fuel Cap (White Plastic)(Standard) (Use as required) (1.5"
I.D.)
301A 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (Use as
required) (1.5" I.D.)
301A 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile) (Use
as required) (1.5" I.D.)
301A 35355 Fuel Cap (Red Plastic)(1.75" I.D.)
303 32958 Fitting, Fuel
336 650765 Screw, 10-32 x 1/2"
337 34666 Cover, Carburetor
338A 31291 Plug, Cover
364 33377 Bracket, Carburetor cover mtg.
365 650767 Screw, 8-32 x 27/64"
370 34346 Decal, Instruction
370 35274 Decal, Instruction
370C 34589 Decal, Choke
370D 34144 Decal, Primer
370E 34414 Decal, Warning
421 730226 SAE 5W30 4-Cycle Engine Oil (Quart)
422 35824 Muffler Optional
1159 30312 Screw, 10-32 x 1/2"
1160 28820 Screw, 10-32 x 1/2"
1160 27070 Lockwasher
1185 33816 Hub & Screen Assy.
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HM100-159077G Page 10 of 11
Engine Parts List #4
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HM100-159077G Page 11 of 11
Engine Parts List #4
Ref # Part Number Qty Description
1 34922A Cylinder (CI liner)(3-5/16")(Incl.2,2 0 & 72)
2 27652 Pin, Dowel
37A 30322 Nut & Lockwasher, 8-32
72 27642 Plug, Oil drain
101 610118 Cover, Spark plug
103 650516 Screw, 1/4-20 x 1-1/8"
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
131A 650713 Screw, 5/16-18 x 5/8"
131 650737 Screw, 1/4-20 x 1/2" (Use as required )
131 650738 Screw, 1/4-20 x 5/8 (Use as required)
169 27896A * Gasket, Breather
170 28423 Body, Breather
171 28424 Element, Breather
172 28425 Cover, Breather
173 35350 Tube, Breather
174 650128 Screw, 10-24 x 1/2"
178 29752 Nut & Lockwasher, 1/4-28
207 33878 Link, Governor lever-to-throttle
222A Pop Rivet (Can be purchased locally)
275B 391026 Muffler (Incl. 284, 284A & 416) (This spark arrester
mufflercan be used on any model.)
275 33280A Muffler
276 31588 Plate, Muffler locking
276 35741 Plate, Muffler locking
277 650729 Screw, 5/16-18 x 3-3/16" (Use as requ ired)
277 651002 Screw, 5/16-18 x 4-1/4" (Use as requi red)
285A 33662 Hub & Screen Assy.
301A 410144B Fuel Cap (White Plastic)(Standard) (Use as required) (1.5"
I.D.)
301A 33032 Fuel Cap (Red Plastic) (Spurt Resistant, Low Profile) (Use as
required) (1.5" I.D.)
301A 34210 Fuel Cap (Red Plastic) (Spurt Resistant, High Profile) (Use
as required) (1.5" I.D.)
301A 35355 Fuel Cap (Red Plastic)(1.75" I.D.)
313A 33876 Gasket, Stator (Used only on Std. poi nt ign.)
337 34666 Cover, Carburetor
338A 31291 Plug, Cover
361 30063 Screw, Torx T-30, 1/4-20 x 1/2"
370D 34144 Decal, Primer
375 610982 Magneto (w/ring gear) (12 Volt, 3 Amp ) NOTE: The
complete magneto is not available as an assembly.
Themagneto number is shown for reference purpose only.
Order component parts individually, as shown in parts list.
(Refer to Division 5, Section B, page 36 for breakdown or
Fiche 18B, Grid F-3
377 30547A Breaker Points (Use with Std. point i gn.)
378 610767A Condenser
380 632110 Carburetor (Incl. 184 & 379) (Refer to Division 5, Section A,
page 168 for breakdown or Fiche18B, Grid E-9)
421 730226 SAE 5W30 4-Cycle Engine Oil (Quart)
422 35824 Muffler Optional
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