M18-24521 Air Intake Page 1 of 40 Ref # 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 31 Part Number X-276-7-S 52 082 02-S 52 032 01-S 231032-S 52 082 03-S 52 083 01-S1 47 083 01-S1 X-67-83-S 52 201 07-S 25 041 06-S 52 754 03-S X-22-9-S X-50-57-S X-50-37-S X-25-79-S 52 055 04-S X-352-38-S X-67-62-S 25 113 07-S Qty Description 2 Wing nut 1/4-20 1 Cover, air cleaner - square 1 Seal, air cleaner cover 2 Seal, element cover 1 Cover, air cleaner element 1 Precleaner 1 Element, air cleaner 1 Screw, hex. wash. hd. 1/4-20x7/16" 1 Base, air cleaner 1 Gasket, air cleaner elbow 1 Kit, air intake elbow Includes 11,31 2 Washer, I.T. #10 M18-24521 Screw, sltd. pan hd. 10-32x1-1/2" Page 2 of 40 2 Air Intake Screw, sltd. pan hd. 10-32x2-1/4" 1 1 Washer, plain #10 1 Gasket, air cleaner 1 Stud 1/4-20x4-3/4" 1 Screw, hex. wash. hd. 1/4-20x3/4" 1 Decal, air cleaner NOT ILLUSTRATED M18-24521 Page 3 of 40 Baffles & Shroud Ref # 7 10 11 12 13 14 22 27 Part Number 52 124 23-S X-67-83-S 52 063 21-S 52 063 01-S 52 086 11-S 52 468 16-S 52 217 01-S 52 755 70-S Qty 1 20 1 1 2 2 1 1 Description Baffle, #1 cylinder head (6-1/8" wide with 3" wide rear cylinder baffle) Screw, hex. wash. hd. 1/4-20x7/16" Baffle, #2 cylinder head (8-3/4" wide with 2-59/64" wide rear cylinder baffle) Baffle, fuel pump Screw, hex. wash. hd. 1/4-20x5/8" Washer, flat Bracket, upper housing Kit, blower housing Includes 10 [qty. 3],13 [qty. 2],14 [qty. 2],22 M18-24521 Page 4 of 40 Baffles & Shroud M18-24521 Page 5 of 40 Breather & Vent Ref # 1 2 3 4 5 6 7 8 9 10 11 12 Part Number 52 326 06-S X-81-1-S X-25-12-S 52 096 08-S 52 055 01-S 231419-S 52 032 04-S 52 462 01 52 096 22 275220-S X-352-39-S 52 096 18 Qty Description 1 Hose, breather 3-5/8" 2 Nut, hex. 1/4-20 2 Washer, plain 1/4" 1 Cover, #1 upper cylinder valve 3 Gasket, valve cover 1 Filter, breather 1 Seal, breather 1 Valve, umbrella 1 Cover, #1 lower cylinder valve 1 Stud, #1 cylinder valve cover - 1/4-20x3-1/4" 1 Stud, #2 cylinder valve cover - 1/4-20x2-1/4" 1 Cover, #2 cylinder valve M18-24521 Page 6 of 40 Breather & Vent M18-24521 Page 7 of 40 Camshaft & Valves Ref # 3 4 5 6 7 8 9 10 12 Part Number 82 755 13-S 41 755 10-S 25 089 01-S 52 032 13-S 52 017 08-S 82 755 11-S 25 089 01-S 52 413 01-S 230011-S Qty 1 4 2 2 2 2 2 2 2 Description Kit, camshaft Includes 1, 52 019 03-S [qty. 4] Kit, retainer Spring, intake valve Seal, intake valve stem Valve, intake Kit, exhaust valve Includes 52 031 01-S valve seat insert Spring, exhaust valve Rotator, .03" exhaust valve Retainer, intake valve spring M18-24521 Page 8 of 40 Camshaft & Valves M18-24521 Page 9 of 40 Carburetor (Pg 20) Ref # 1 Part Number 52 853 07 52 853 23-S Qty 1 1 Description Kit, fixed jet carburetor Includes 3,11-14, Carburetor assembly 52-053-26*, 52-053-31*, 52-053-36* ( - or use - ) Kit, adjustable jet carburetor Includes 3,11-14, Carburetor assembly 52-053-50* or 52-053-66* 2 3 4 5 6 7 8 9 10 11 12 13 14 25 155 02-S 271030-S X-6-8-S X-21-1-S 52 041 09-S X-77-2-S X-352-37-S 52 164 10-S 52 445 02-S 25 041 06-S 82 755 07-S 25 158 09 52 186 06-S 1 Connector, 90ø hose For 1/4" I.D. rubber hose 1 Gasket, carburetor 4 Screw, H.C. 5/16-18x2-3/4" 4 Washer, lock 5/16" 2 Gasket, intake manifold 2 Nut, hex. jam 5/16-18 2 Stud 5/16-18x1" M18-24521 Manifold, 10 of 40 Page intake 1 Carburetor (Pg 20) lifting 2 Strap, 1 Gasket, air cleaner 1 Kit, governor linkage Includes 13 1 Bushing Replaced by 25 158 11-S 1 Arm, governor M18-24521 Crankcase Page 11 of 40 Ref # 1 2 3 4 5 6 9 10 11 12 13 15 20 21 22 23 23 23 28 31 32 33 34 37 41 42 43 44 45 46 47 48 Part Number 82 755 16-S 82 755 17-S 52 316 06 52 031 01-S X-82-2-S 52 468 12-S 25 086 10-S X-583-5-S X-802-9-S 52 755 56-S X-75-23-S 52 755 50-S 25 086 12-S X-75-10-S 52 032 10-S 52 030 10-S 52 030 11-S 52 030 12-S X-75-32-S X-67-64-S 52 139 08-S 52 141 02-S X-702-15-S 52 237 05-S 52 123 10 52 078 05-S X-269-43-S 25 086 13-S 25 086 11-S 52 072 12-S 52 095 03 52 237 02-S Qty Description 1 Kit, cylinder barrel #1 Includes 3,4 and exhaust valve 1 Kit, cylinder barrel #2 Includes 3,4 and exhaust valve 4 Guide, valve 4 Insert, valve seat 12 Nut, hex. 5/16-18 12 Washer, flat 5/16" 3 Screw, hex. flange 5/16-18x1-1/2" 1 Seal, rear oil 1-3/8" I.D. 9 Screw, hex. flange 5/16-18x1" 1 Kit, closure plate Includes 13 1 Plug, hex. ctsk. 1/8" N.P.T.F. 1 Kit, oil relief Includes ball, spring & sleeve M18-24521 Screw, hex. flange 5/16-18x2" Page 12 of 40 2 Crankcase Plug, solid sq. hd. 3/8" N.P.T.F. 1 1 Seal, front oil 2 Bearing, sleeve flange (Std.) 2 Bearing, sleeve flange (.010) 2 Bearing, sleeve flange (.020) 2 Plug, hex. ctsk. 3/8" N.P.T.F. 1 Screw, hex. wash. hd. 10-32x7/16" 1 Plug 3/4" O.D. 1 O-Ring 1 Plug, cup 5/16" 1 Clamp, tube 1 Tube, oil pickup 1 Shaft, governor 1 Ring, retaining 2 Screw, hex. flange 3/8-16x3-5/8" 8 Screw, hex. flange 5/16-18x3-1/2" 12 Step stud 5/16-18x3/4", 3/8-16 x 5/8", 2" long 1 Housing, oil strainer 1 Clamp, spring M18-24521 Crankshaft Page 13 of 40 Ref # 1 2 2 2 Part Number 52 014 79-S 52 468 03-S 52 468 04-S 52 468 05-S Qty 1 A.R. A.R. A.R. Description Crankshaft (1" dia. x 2-3/4" tapped PTO) Washer, thrust .119/.122 Washer, thrust .128/.131 Washer, thrust .137/.140 M18-24521 Crankshaft Page 14 of 40 M18-24521 Page 15 of 40 Cylinder Head Ref # 1 3 6 7 Part Number 52 041 20-S 52 015 08-S 41 086 02-S 220534-S Qty 2 2 18 18 Description Gasket, cylinder head Head, cylinder Screw, hex. hd. 5/16-18x1-1/2" Washer, plain 5/16" M18-24521 Page 16 of 40 Cylinder Head M18-24521 Dipstick Page 17 of 40 Ref # 1 2 3 4 5 6 Part Number 52 038 04-S 52 123 09-S X-67-64-S 52 154 01-S 52 173 01-S 46 136 02-S Qty 1 1 1 1 1 1 Description Dipstick 11-5/16" blade Tube, oil level Screw, hex. wash. hd. 10-32x7/16" Clip, tube Cap, pipe Pipe, 1" N.P.T.F. x 3" M18-24521 Dipstick Page 18 of 40 M18-24521 Page 19 of 40 Electric Start - Pg. 33 Ref # 1 2 3 4 5 6 7 8 9 10 Part Number 52 098 03 X-20-1-S X-81-1-S 52 755 05 52 755 08 52 227 01 52 170 02-S 52 211 01-S 277612 48 755 15 25 450 03-S 52 357 01-S Qty Description 1 Starter assembly Includes 4-10 2 Washer, lock 1/4" 2 Nut, hex. 1/4-20 1 Kit, drive Includes 5 1 Kit, drive parts 1 Cap, drive end 1 Armature 2 Bolt, thru 1/4-20x5-7/8" 1 Cap assembly, commutator end Includes 10 1 Kit, brush & spring Replaced by 52 755 15 1 Tag, caution 1 Lubricant, starter M18-24521 Page 20 of 40 Electric Start - Pg. 33 ...