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Parts list

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	Description	OEM Part #	Price
1	1 12301-028-010 Cover, cylinder head	12301-028-010	—
2	2 12331-028-010 Superceded	12331-028-010	—
	replacement
2	2 12331-028-020 Cover, vlv rkr ar sd	12331-028-020	US $17.68
2	2 12331-028-020 Cover, vlv rkr ar sd	12331-028-020	US $17.68
3	3 12361-028-000 Cap, valve adj.	12361-028-000	from US $7.63
4	4 12391-121-630 Gasket, cyl hd cvr	12391-121-630	from US $3.77
5	5 12394-121-630 Gasket, r	12394-121-630	from US $3.40
6	6 16201-096-306 Gasket, insulator	16201-096-306	—
7	7 16211-096-306 Insulator, carb	16211-096-306	—
8	8 16235-102-730 Clamp, fuel tube Use up to Engine SN 5001220	16235-102-730	—
8	8 16235-102-731 Clamp, fuel tube Use from Engine SN 5001221	16235-102-731	US $4.55
9	9 17111-102-730 Pipe, inlet	17111-102-730	—
11	11 90442-028-000 Washer (8mm)	90442-028-000	from US $1.92
12	12 90483-028-000 Washer, 8mm	90483-028-000	from US $1.28
13	13 91301-028-000 O-ring, 27x2.0	91301-028-000	from US $2.64
13	13 91305-KF0-003 O-ring, 27x2 (arai)	91305-KF0-003	from US $2.59
14	14 91304-HB3-003 O-ring (33.5x3.0) Use up to Engine SN 5008400	91304-HB3-003	from US $5.03
15	15 92101-06025-0A Bolt, hex., 6x25	92101-06025-0A	from US $0.58
16	16 93500-060-200-A Screw PAN, 6X20	93500-060-200-A	from US $0.44
17	17 94001-062-000-S Nut HEX., 6MM	94001-062-000-S	from US $0.44
18	18 90220-028-000 Nut, cap (8mm)	90220-028-000	US $2.22
19	19 94030-08000 Nut HEX., 8MM	94030-08000	from US $0.44
20	20 98066-58717 Plug,spark	98066-58717	from US $2.72
20	20 98066-58727 Plug,spark (x24fs	98066-58727	from US $2.81

Cylinder head cover Diagram Honda CT90 USA 13631118-787334