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Makotosun

Vin check 4n5 prefix

  • Papawhellie
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Vin check 4n5 prefix was created by Papawhellie

Someone has a 4n5-000475  engine for sale. Ideas on what it is. Claims off a 84 250 2 stroke. No 250 in 84.
13 Jun 2026 19:25 #1

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Replied by Gr8uncleal on topic Vin check 4n5 prefix

4N5 is the model code for a 1980 XS400 - not a 2 stroke and not a 250. Maybe a typo?
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13 Jun 2026 22:47 #2

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Replied by MarkT on topic Vin check 4n5 prefix

Off the top of my head, 2N5 is a US 1979 DT175F
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
14 Jun 2026 05:30 #3

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Replied by Papawhellie on topic Vin check 4n5 prefix

Maybe the link will work.
www.facebook.com/share/18cowY1zRL/
14 Jun 2026 06:48 #4

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Replied by MarkT on topic Vin check 4n5 prefix

4V5?  1981 IT250H

www.partzilla.com/catalog/yamaha/motorcy...1981/it250h/cylinder
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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14 Jun 2026 09:11 #5

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Replied by pabdt on topic Vin check 4n5 prefix

edit: Those facebook pictures do look like 4 "V" 5.

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1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
Last edit: 14 Jun 2026 11:21 by pabdt.
14 Jun 2026 11:17 #6

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Replied by Papawhellie on topic Vin check 4n5 prefix

Sounds right on the IT. I knew the 400 was a twin and that second letter is tough to read. 
Thanks for figuring it out.
14 Jun 2026 13:08 #7

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