1981 · Parts Diagram

Engine

MC 250 · MC 400 · MC 490 · 218 parts

Click diagram to enlarge

Parts List — 218 parts

Item	Part No.	Description	MC 250	MC 400	MC 490
1	6782	Crankcase right hand	1	1	1
2	1997	Internal ring	2	2	2
3	6784	Crankcase left hand	1	1	1
4	1995	Emgine mounting bushes	4	4	4
5	1994	Spacer bush for swing arm	2	2	2
6	1993	Crankcase gasket	1	1	1
7	2140	Crankcase cover	1	1	1
8	1991	Ignition cover	1	1	1
9	1990	Crankcase cover gasket left hand	1	1	1
10	1989	Crankcase cover gasker right hand	1	1	1
11	1988	Main bearing cover plate	1	1	1
12	1795	Counter sunk screw M 5x8 Din 965	11	11	11
13	1987	Crankshaft housing	2	-	-
14	1986	MS bearing cover plate	2	2	2
15	1787	Stud screw M 8x28 Din 940	4	4	4
16	1831	Tension pin 8x10 Din 7346	2	2	2
17	895	Oil drain plug	1	1	1
18	1985	Breather	1	1	1
19	1984	Oil filling plug	1	1	1
20	410	Spacer ring A14x18 Din 84	1	2	2
21	1526	Cylinder head screw M 8x10 Din 84	1	1	1
22	1536	Cylinder head screw M 6x25 Din 84	4	4	4
23	1550	Cylinder head screw M 6x30 Din 84	3	3	3
24	1538	Cylinder head screw M 6x35 Din 84	5	5	5
25	1539	Cylinder head screw M 6x40 Din 84	6	6	6
26	1541	Cylinder head screw M 6x50 Din 84	1	1	1
27	1542	Cylinder head screw M 6x55 Din 84	3	3	3
28	1983	Counter sprocket cover	1	1	1
29	1533	Cylinder head screw M 6x18 Din 84	3	3	3
30	1865	Sealing ring AS 12x22x7 Din 3760	1	1	1
31	1866	Sealing ring A 18x28x7	1	1	1
32	1313	Spring rubber 4-280 long	X	-	-
33	263	Breather tube 4x1.5	X	X	X
34	407	Flat washer A 6x10 Din 7603	2	2	2
35	2133	Sliding piece	1	1	1
36	1815	Tension pin 8x36 Din 7346	1	1	1
37	3225	Crankcase cpl	1	-	-
38	4162	Connecting rod cpl	-	1	1
39	424	Needle bearing Red 0-2	-	1	1
40	426	Roller bearing NU 305 C3 Din 5412	1	1	1
41	693	Ball bearing 3305 C3 Din 628	1	1	1
42	547	Sealing ring	1	1	1
43	3469	Sealing ring	1	1	1
44	6826	Sprocket for crankshaft	1	-	-
45	1891	Sealing ring for oil filling plug	-	1	1
46	3240	Guide nut on crankshaft	1	1	1
47	3254	Securing plate	1	1	1
49	6918	Piston std. 66.95	1	-	-
50	6819	Piston ring std. 67.00	1	-	-
51	535	Piston pin	1	-	1
52	536	Circlip	2	2	2
53	6891	Radial cylinder cpl MC	-	1	-
54	2159	Cylinder liner	-	1	-
55	6983	Exhaust flange MC	-	1	1
56	298	Gasket for exhaust flange	-	1	1
57	1704	Spring ring B 6 Din 127	-	4	4
58	1635	Socket screw M 6x25 Din 912	-	4	4
59	6584	Cylinder head	-	1	-
60	720	Cylinder head gasket	-	1	-
61	6793	Cylinder base gasket 0.3 thick	As needed		-
62	2968	Cylinder head stud	-	5	5
63	1745	Washer B 8.2x20x1.8	-	5	5
64	78	Hexagon nut	-	5	5
65	1714	Spring washer B 8 Din 137	-	4	4
66	1670	Hexagon nut M 8 Din 934	-	4	4
67	517	Decompression valve cpl	-	1	1
69	6760	Rubber cable clip	2	2	2
70	5720	Push pin	1	1	1
71	1096	Bearing plate	1	1	1
72	1084	Needle cage	1	1	1
73	5718	Guide for clutch disc	1	1	1
74	2890	Washer 10.1x18.2x0.6	1	1	1
75	1842	Securing ring	1	1	1
76	449	Cup spring	18	18	18
77	448	Guide nut	1	1	1
78	447	Lock plate for guide nut	1	1	1
79	2580	Clutch body	1	1	1
80	736	Needle cage	2	2	2
81	444	Thrust washer	1	1	1
82	6800	Clutch housing with kickstarter ratchet wheel	1	-	-
83	1905	Oval head rivet 4x10 Din 662	8	8	8
84	729	Kickstarter ratchet wheel	1	1	1
85	730	Kickstarter pinion	1	1	1
86	731	Ratchet spring	1	1	1
87	5592	Spring cup	1	1	1
88	5593	Circlip	1	1	1
89	3390	Inner disc	6	6	6
90	3396	Clutch disc	6	6	6
91	5721	Terminal disc	1	1	1
92	461	Circlip	2	2	2
93	6803	Primary chain	1	1	1
94	462	Clutch spindle	1	1	1
95	464	Sealing ring for clutch spindle	1	1	1
96	2898	Clutch lever	1	1	1
97	1732	Washer B 6.4 Din 125	1	1	1
98	1690	Hexagon nut NM 6 Din 980	1	1	1
99	2025	Main shaft	1	1	1
100	2043	M S shim	1	1	1
101	3441	1st gear pinion on mainshaft 19 teeth	1	-	-
102	3706	Spacer ring	1	1	1
103	3435	4th gear pinion on mainshaft 26 teeth	1	1	1
104	3434	3th gear pinion on mainshaft 24 teeth	1	-	-
105	492	Circlip	3	3	3
106	3440	2nd gear pinion on mainshaft 21 teeth	1	-	-
107	3723	Shim for 1st gear	2	2	2
108	2039	5th gear pinion on mainshaft 28 teeth	1	1	1
109	3893	Spacer washer	5	5	5
109.1	3201	Shim 0.8mm	1	1	1
110	5597	Layshaft (MT 1)	1	1	1
111	913	Needle cage K 16x21x10	2	2	2
112	3438	1st gear pinion on layshaft 26 teeth	1	-	-
113	3442	Twin block pinion on layshaft 19/21 teeth	1	1	1
114	3456	Shim for 2nd gear	1	1	1
115	3439	2nd gear pinion on layshaft 23 teeth	1	-	-
116	3757	Needle cagte K 20x24x12	1	1	1
117	2037	Drive shaft 28 teeth	1	1	1
118	2238	Plug	1	1	1
119	339	Ball bearing 6303 CS Din 625	1	1	1
120	513	Needle bearing HK 1612	2	2	2
120.1	5596	Layshaft bearing left hand	1	1	1
121	514	Needle bearing BK 1616	2	2	2
121.1	5598	Layshaft bearing right hand	1	1	1
122	375	Ball bearing 6206 2RS C3 Din 625	1	1	1
123	2044	Spacer ring	1	1	1
124	3465	Sprocket 13 teeth	-	1	1
125	1848	Lock ring 29x1.5 Din 471	1	1	1
126	6530	Rubber pad	1	1	1
127	6585	Gear change lever	1	1	1
127.1	6787	Lever	1	1	1
127.3	6588	Spring	1	1	1
128	1570	Hexagon screw M 6x25 Din 933	1	1	1
129	1726	Spring washer B 6 Din 137	1	1	1
130	2324	Washer 12.1x26.2x1	1	1	1
131	573	Return spring	1	1	1
132	6591	Gear change crank	1	1	1
133	2336	Pullrod	1	1	1
134	2374	Pullrod pivot arm	1	1	1
135	1903	Pivot arm A 8x20 Din 1469	1	1	1
136	1836	Securing ring 8x0.8 Din 471	1	1	1
137	2376	Hooked ratchet sliding arm	1	1	1
138	2508	Guide plate	1	1	1
139	1795	Countersunk screw 5x8 Din 965	2	2	2
140	2510	Hooked ratchet "T"	1	1	1
141	2388	Hook	1	1	1
142	1667	Hexagon nut M 6 Din 934	1	1	1
143	576	Tension spring for hooked ratchet	1	1	1
144	3406	Shifting plate cpl	1	1	1
145	3402	Shifting segment	1	1	1
146	2397	Shim 10.6x18.2x1	1	1	1
147	2393	Guide screw	2	2	2
148	410	Sealing ring A 14x18	1	1	1
149	2695	Tension spring	2	2	2
150	2396	Pawl pin	1	1	1
151	2399	Gear selection fork spindle	1	1	1
152	3414	Gear selection fork	1	1	1
153	2566	Kickstarter spindle cpl	3	3	3
154	2559	Kickstarter spindle	1	1	1
155	761	Kickstarter Quardrant	1	1	1
156	666	Return spring	1	1	1
157	1828	Tension bush 5x26 Din 1481	1	1	1
158	1753	Shim 12.2x30.2x0.5	1	1	1
159	3353	Internal ring	1	1	1
160	5035	Kickstarter lever cpl	1	1	1
161	656	Rubber pad	1	1	1
162	5033	Kickstarter lever	1	1	1
163	1874	Compress spring for kickstarter	1	1	1
164	3867	Ball 0 7	1	1	1
165	1840	Lock washer RS	1	1	1
166	5034	Kickstarter joint	1	1	1
167	1570	Hexagon screw M 6x25 Din 933	1	1	1
168	1704	Spring ring B 6	1	1	1
169	3598	Motoplat Ignition cpl	1	1	1
170	3530	Rubber sleeve	1	1	1
171	1630	Socket screw M 5x16 Din 912	3	3	3
172	1731	Shim B 5.3 Din 125	3	3	3
173	1123	Nut for generator	1	1	1
174	1881	Woodruff key 3x3.7 Din 6888	1	1	1
175	3600	Ignition coil Motoplat	1	1	1
176	1567	Hexagon screw M 6x16 Din 933	2	2	2
177	1732	Shim B 6.4 Din 125	4	4	4
178	1690	Hexagon nut NM 6 Din 980	2	2	2
179	3610	Cable plug	1	1	1
180	3576	Connector 6,3-1 Din 46247	1	1	1
181	3596	Connector housing 6,3	1	1	1
182	3595	Connector 9,5-6 Din 46247	1	1	1
183	3597	Connector housing 9,5	1	1	1
202	2607	Wire housing B 0 3x0,4 Din 40621	X	X	X
203	603	Spark plug Champion N 2	1	1	1
204	6355	Carburetor cpl Bing V54/40/404/11	-	1	-
205	3905	Carburetor cpl Bing V54/38/111/11	1	-	-
206	3753	Intake flange	-	1	1
207	5342	Bush	-	1	1
208	5334	Clamp	-	1	1
209	620	Screw	-	1	1
210	621	Nut	-	1	1
211	6796	Reed valve cpl	1	-	-
212	6788	Cylinder 250 cpl	1	-	-
213	6789	Cylinder liner 0 67	1	-	-
214	6666	Intake flange	1	-	-
215	6791	Cylinder head 250	1	-	-
216	6792	Cylinder head gasket	1	-	-
217	1734	Wash B 8,4 Din 125	6	-	-
218	1670	Hexagon nut M 8 Din 934	10	-	-
219	1635	Socket screw M 6x25 Din 912	6	-	-
220	1510	Washer B 6.4 Din 128	6	-	-
224	2967	Culinder head stud	6	-	-
225	6787	Nut	2	-	-
226	6810	Intake gasket	2	-	-
227	683	Clamp	1	-	-
228	6912	choke lever	1	-	-
229	6914	Nut	2	-	-
230	3913	Screw	2	-	-
231	1509	Washer	2	-	-
232	6911	Rubber cap	1	-	-
233	6910	Choke housing	1
234	6909	Spring	1
235	6908	Choke piston	1
236	3143	Intake manifold	1	1	1

Need a part from this list?

SOCAL Maico — Largest Maico parts supplier in the World

(805) 469-0477 Email Gary