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HM100-159203R Page 1 of 9
Engine Parts List #1
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HM100-159203R Page 2 of 9
Engine Parts List #1
Ref # Part Number Qty Description
1 35371 Cylinder (CI liner)(3-5/16")(Incl.2,2 0 & 72)
2 27652 Pin, Dowel
3 650820 Screw, 1/4-20 x 1/2"
4 30968 Nipple, Oil drain
5 30969 Cap, Oil drain
15A 30700 Yoke, Governor
15B 650494 Screw, 6-40 x 5/16"
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"
20 35319 Seal, Oil
25 29536 Blower Housing Baffle (Without electric starter knockout)
(Use as required)
25 35256A Blower Housing Baffle (With electric starter knockout) (Use
as required)
25 35326 Baffle, Blower housing
26 650561 Screw, 1/4-20 x 5/8"
28 30322 Nut & Lockwasher, 8-32
30 35443A Crankshaft
35 29826 Screw, 10-32 x 3/4"
36 29918 Lockwasher, #8 E.T.
37 29216 Locknut, 10-32
38 29642 Ring, Retaining
40 35776 Piston, Pin & Ring Set (Std.)(3-3/16" )
40 35777 Piston, Pin & Ring Set (.010" OS)
40 35778 Piston, Pin & Ring Set (.020" OS)
41 35773 Piston & Pin Ass'y. (Std.)(3-5/16")(I ncl.43)
41 35774 Piston & Pin Ass'y. (.010" OS) (Incl. 43)
41 35775 Piston & Pin Ass'y. (.020" OS) (Incl. 43)
42 35779 Ring Set (Std.) (3-5/16" Bore)
42 35780 Ring Set (.010" OS)
42 35781 Ring Set (.020" OS)
43 35772 Ring, Piston Pin retaining
45 35681 Rod Assy., Connecting (Incl. 46, 47 & 49)
46 650908 Bolt, Connecting rod
47 650882 Connecting Rod Bolt (2 pcs. on early Specs.)
48 34034 Lifter, Valve
49 35374 Dipper, Oil
50 35375 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 35376 Cover, Cylinder (Incl. 71, 75 & 80)
75 35319 Seal, Oil
80 31845 Shaft, Mechanical governor
81 30590A Washer, Flat
82 35378 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
90 611093 Flywheel (w/ring gear) (3 Amp)
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HM100-159203R Page 3 of 9
Engine Parts List #1
Ref # Part Number Qty Description
92 650880 Washer, Lock
93 650881 Nut, 5/8-18
100 35135 Solid State Assy.
101 610118 Cover, Spark plug
102 650872 Stud, Solid state mounting
103 650814 Screw, Torx T-15, 10-24 x 1"
108 29783 Pin, Crankshaft gear (Only serviceable when gear is pinned
to crank.)
109 33245 Gear, Crankshaft
110 35253 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)
127A 650890 Washer, Internal Lock
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)
130A 650737 Screw, 1/4-20 x 1/2" (Use as required )
130A 650738 Screw, 1/4-20 x 5/8 (Use as required)
135 35395 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 34677 Control Bracket (Incl.19, 203, 204, 2 06, 209)
200B 730152 Control Bracket (Incl.1158-1171)(As r eq.)
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"
215 35440 Knob, Speed control
219 34586 Rod, Choke
220 35438 Knob, Choke
222 28820 Screw, 10-32 x 1/2"
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HM100-159203R Page 4 of 9
Engine Parts List #1
Ref # Part Number Qty Description
223 650378 Screw, Torx T-30, 5/16-18 x 1-1/8"
224 27915A * Gasket, Intake pipe
260 34822A Blower Housing
261 650788 Screw, 5/16-18 x 3/4"
262 29747B Screw, 5/16-24 x 21/32"
264A 650802 Screw, 1/4-20 x 5/8"
265 33272B Cover, Cylinder head
275C 35056 Muffler
275B 391026 Muffler (Incl. 284, 284A & 416) (This spark arrester
mufflercan be used on any model.)
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)
281 33013 Cover, Starter bubble
282 650760 Screw, 8-32 x 7/16"
285 35287 Cup, Starter
286 35446 Screen, Starter
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 35857 Fuel shut-off valve
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.
305 35554 Oil Fill Tube
307 35499 "O" Ring
308 35540 Clip, Fill tube
310 36205 Dipstick
313A 33876 Gasket, Stator (Used only on Std. poi nt ign.)
327 35392 Plug, Starter
329 610973 Terminal Assy.
335 35057A Cover, Carburetor (Incl. 329)
336 650765 Screw, 10-32 x 1/2"
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"
350 570682 Primer Assy.
351 32180C Line, Primer
355 590574 Handle, Mitten grip
364 33377 Bracket, Carburetor cover mtg.
365 650767 Screw, 8-32 x 27/64"
370A 34686 Decal, Name
370 34416 Decal, Instruction
370 35274 Decal, Instruction
370 35077 Decal, Instruction
370D 34417 Decal, Primer
377 30547A Breaker Points (Use with Std. point i gn.)
379 631021 Inlet Needle, Seat & Clip Assy.
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HM100-159203R Page 5 of 9
Engine Parts List #1
Ref # Part Number Qty Description
380 632370A Carburetor (Incl. 184 & 379) (Refer to Division 5, Section A,
page A3-10 for breakdown or Fiche 18B, Grid D-5)
390 590630 Rewind Starter (Refer to Division 5, Section C, page 30 for
breakdown or Fiche 18B, Grid G-1)
400 33279G * Gasket Set (Incl. items marked *)
418 33700 Cover & Tube, Muffler (use as require d)
419 650578 Screw, 8-18 x 3/8" (use as required)
420 730225 SAE 30 4-Cycle Engine Oil (Quart)
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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HM100-159203R Page 6 of 9
Engine Parts List #2
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HM100-159203R Page 7 of 9
Engine Parts List #2
Ref # Part Number Qty Description
108 29783 Pin, Crankshaft gear (Only serviceable when gear is pinned
to crank.)
109 33245 Gear, Crankshaft
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
174 650128 Screw, 10-24 x 1/2"
200B 730152 Control Bracket (Incl.1158-1171)(As r eq.)
227 730127 Air Cleaner Ass'y. (Incl. 238, 239, 242, 246, 250) (Use as
required)
274 35865 Gasket, Exhaust
275B 391026 Muffler (Incl. 284, 284A & 416) (This spark arrester
mufflercan be used on any model.)
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)
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)
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.
298 650665 Screw, 1/4-15 x 7/8"
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
313A 33876 Gasket, Stator (Used only on Std. poi nt ign.)
314 650873 Screw, 1/4-20 x 3/4"
323 611118 Pin Terminal
338A 31291 Plug, Cover
370E 34414 Decal, Warning
377 30547A Breaker Points (Use with Std. point i gn.)
379 631021 Inlet Needle, Seat & Clip Assy.
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)
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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HM100-159203R Page 8 of 9
Engine Parts List #3
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HM100-159203R Page 9 of 9
Engine Parts List #3
Ref # Part Number Qty Description
1 35371 Cylinder (CI liner)(3-5/16")(Incl.2,2 0 & 72)
2 27652 Pin, Dowel
3 650820 Screw, 1/4-20 x 1/2"
90 611093 Flywheel (w/ring gear) (3 Amp)
100 35135 Solid State Assy.
101 610118 Cover, Spark plug
102 650872 Stud, Solid state mounting
103 650814 Screw, Torx T-15, 10-24 x 1"
108 29783 Pin, Crankshaft gear (Only serviceable when gear is pinned
to crank.)
109 33245 Gear, Crankshaft
110A 35305 Wire, Ground
129 650727 Screw, 5/16-18 x 1-3/4 (Use as requir ed)
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
200B 730152 Control Bracket (Incl.1158-1171)(As r eq.)
207 33878 Link, Governor lever-to-throttle
260 34822A Blower Housing
275B 391026 Muffler (Incl. 284, 284A & 416) (This spark arrester
mufflercan be used on any model.)
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)
313A 33876 Gasket, Stator (Used only on Std. poi nt ign.)
314 650873 Screw, 1/4-20 x 3/4"
315 611111 Alternator Coil (18 watt)
323 611118 Pin Terminal
338A 31291 Plug, Cover
377 30547A Breaker Points (Use with Std. point i gn.)
379 631021 Inlet Needle, Seat & Clip Assy.
380 632370A Carburetor (Incl. 184 & 379) (Refer to Division 5, Section A,
page A3-10 for breakdown or Fiche 18B, Grid D-5)
418 33700 Cover & Tube, Muffler (use as require d)
419 650578 Screw, 8-18 x 3/8" (use as required)
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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