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Engine identification

31 Jul 2020 06:53
Nitto05
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Engine identification #1
i bought a blaster for 60 bucks seems to have a enduro engine in it. It has the dual spark plugs and all of that, its a 250cc and i cant seem to find the engine number. Anybody knoe what kinda engine is on it
I bought it cleaned the gas tank, put a newer coil,
New plug, and some oil
And then i put some mix fuel in the tank and was pull started and she ran.
Bought it from a shop thst says it was sitting in a barn for 5 years then outside for 3 years and yet it was the easiest bike i had to work with. Heres a video of it

drive.google.com/file/d/1Kx7rb7gPzuA60BQ...NR/view?usp=drivesdk


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31 Jul 2020 07:37
MarkT
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Engine identification #2
Best I can tell from the picture and video is it has an engine and it sounds like it's running in the video.

Close up photos of the engine would be helpful.

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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31 Jul 2020 10:30
Nitto05
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Engine identification #3
Lol one sec

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31 Jul 2020 10:34
Nitto05
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Engine identification #4

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31 Jul 2020 10:37
Nitto05
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Engine identification #5

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31 Jul 2020 10:55
LongStride
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Engine identification #6
1W5 engine prefix = 1977 IT 250D
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31 Jul 2020 11:19
Nitto05
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Engine identification #7
It has the double spark plugs too 1 large and one regular

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31 Jul 2020 11:36
LongStride
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Engine identification #8

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31 Jul 2020 14:06
Nitto05
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Engine identification #9
I csnt find that specific bike on partzilla
I need the intake manifold because myne is bad and have no clue what other bike has a related fitment intake boot. :/

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31 Jul 2020 16:57
MarkT
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Engine identification #10
Manifold has "1W3" cast into it. YZ250 code prefix. (Many IT and YZ parts are the same) Yamaha part number should be 1W3-13565-00-00

Here's a company that makes reproductions:

hotfootmoto.net/store/product.php?produc...18294&cat=257&page=1

Ebay probably has some too... 77-78 YZ250 or 77-78 IT250 is what it looks like should work... I don't have the parts lists to tell you for sure but the "1W3" code cast into the manifold is a reliable identifier.

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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