YAMAKOYO YK550 REPLACEMENT PARTS
| ITEM | Part Number | Yamakoyo # | Description |
| 1 | 36-1082 | 31-54 | Recoil Starter |
| 2 | Starter Cup | ||
| 3 | 12-1137 | 01-09 | Cooling Fan |
| 4 | 12-1131 | 01-37 | Flywheel |
| 5 | 32-1029 | 49-43 | Oil Seal |
| 6 | 12-1031 | 36-45 | Cylinder Barrel |
| 7 | 56-1038 | 33-12 | Engine Stop Switch |
| 8 | 30-1027 | 33-13 | Oil Level Switch |
| 9 | 27-1005 | 36-92 | Governor Gear Assy. |
| 10 | 12-1026 | 36-02Q | Crankshaft Assy. |
| 11 | 26-1003 | 50-11 | Oil Pan Gasket |
| 12 | 12-1093 | 36-117 | Crankcase and Cover |
| 13 | 30-1010 | 07-15 | Oil Dip Stick |
| 14 | 32-1029 | 49-43 | Oil Seal |
| 15 | 12-1039 | 45-01 | Bearing |
| 16 | 10-1003 | 36-21 | Connecting Rod |
| 17 | 38-1055 | 36-53 | Piston Ring |
| 18 | 34-1003 | 36-28 | Piston Assy. |
| 19 | 12-1086 | 36-11 | Cam Shaft |
| 20 | 12-1143 | 36-86 | Valve Lifter |
| 21 | 12-1046 | 36-80 | Push Rod |
| 22 | 12-1120 | 01-28 | Control Assy. |
| 23 | 14-1171 | 50-02 | Head Gasket |
| 24 | 17-1022 | 36-64 | Valve intake/exhaust |
| 25 | 24-1049 | 07-50 | Fuel Tank Joint |
| 26 | 91-1016 | 33-41 | Spark Plug |
| 27 | 19-1028 | 35-08 | Muffler |
| 28 | 19-1075 | 35-07 | Muffler Protector |
| 29 | 21-1001 | 07-10 | Fuel Filter & Holder |
| 30 | 24-1019 | 07-11 | Fuel Tank Cap |
| 31 | 24-1041 | 07-06 | Fuel Tank Assy. |
| 32 | 19-1042 | 35-01 | Muffler Assy. |
| 33 | 12-1053 | 36-73 | Rocker Arm Assy. |
| 34 | 12-1060 | 36-69 | Valve Spring |
| 35 | 12-1140 | 01-01 | Valve Cover |
| 36 | 12-1110 | 99-09 | Cylinder Head |
| 37 | 04-1011 | 49-10 | Carburetor Assy. |
| 38 | 04-1010 | 49-66 | Carb-to-Filter Spacer Gskt. |
| 39 | 14-1061 | Carb-to-Spacer Gasket | |
| 14-1066 | Spacer-to-Head Gasket | ||
| 40 | 29-1054 | 33-04 | Ignition Coil |
| 41 | 02-1153 | 30-04 | Air Cleaner Element |
| 42 | 02-1001 | 30-01 | Air Cleaner Assy. |
| 43 | 12-1126 | 01-06 | Fan Cover Housing |


