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Carburettor Needle Jet Seat O Ring

  • Andy_911
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Carburettor Needle Jet Seat O Ring was created by Andy_911

Does anyone know the part number of the O ring on at 1975 DT250 carb needle seat? Mine is toast and I can’t find a replacement 

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01 Jun 2023 13:47 #1

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Replied by goatboy56 on topic Carburettor Needle Jet Seat O Ring

007 o-ring at any auto parts store.
2 - 73 LT3's
2 - 72 CT2's
2 - 72 DT2's
2 - 73 CT3's
75 DT250B
76 DT175C
Extra 73 CT3 ( parts bike)
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01 Jun 2023 14:09 #2

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Replied by asco on topic Carburettor Needle Jet Seat O Ring

It’s not listed as a 1975. It’s listed as in 1974, but I’m positive it’s the same.

214-14147-00-00 

a
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1971 CT1-C (BRANDY)
1970 DT1-C (MONICA)
1972 AT2M (ZIFFLE)
1970 CT1-B (HULK)
1971 DT1E (GINA)
1970 CT1-B (CLIDE)
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01 Jun 2023 14:14 #3

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Replied by MarkT on topic Carburettor Needle Jet Seat O Ring

Actually both 75 and 76 are listed under 1976 in most online parts lists...  but Asco is correct, it's the same as 74 too. 

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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
01 Jun 2023 14:20 #4

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Replied by goatboy56 on topic Carburettor Needle Jet Seat O Ring

Mark you beat me to it, was just going to say that.
2 - 73 LT3's
2 - 72 CT2's
2 - 72 DT2's
2 - 73 CT3's
75 DT250B
76 DT175C
Extra 73 CT3 ( parts bike)
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01 Jun 2023 14:22 #5

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Replied by RT325 on topic Carburettor Needle Jet Seat O Ring

In the pic it looks like it's possibly been sealing well.
Looks fatter section than original, or it's got sealant around it.
Were you having running issues that you think could be coming from that leaking.
I shouldn't say but i've used an Oring from an oring chain when desperate. Mite've been from a 428 size oring chain.
Last edit: 01 Jun 2023 17:08 by RT325.
01 Jun 2023 17:02 #6

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  • Andy_911
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Replied by Andy_911 on topic Carburettor Needle Jet Seat O Ring

Thank you all. I've been having some rising idling issues but just wanted to check the carb over before posting for further help.
02 Jun 2023 07:20 #7

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Replied by Pete-RT1 on topic Carburettor Needle Jet Seat O Ring

If you're going for the 007 o-ring (I buy them in packs) and not OEM, get them in viton rubber, they'll last a lot longer than nitrile
Yamaha CT1-B
Yamaha CT1-C
Yamaha AT1-E
Yamaha AT1-C
Yamaha CT3
1978 Yamaha DT175MX
2020 Honda CB500X
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02 Jun 2023 08:39 #8

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