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Makotosun

Dt250 in yz125 frame

  • Robdangereux
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Dt250 in yz125 frame was created by Robdangereux

Hi all, what a great site. From here I've identified my frame(1979 yz125f) and engine (1978 dt175e). The engine is woefully underpowered and tired so this would be an expensive rebuild plus all the extra tuning parts. An acquaintance has located a dt250 1m1 engine. Does anyone have a clue whether these cases are the same size as the dt175e cases? If so, it might be a simple swap and probably the sort of power I'm looking for. Ps if I do this a dt175e engine will be for sale. Thanks and thanks for a fab site.
03 Feb 2025 08:19 #1

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Replied by Ht1kid on topic Dt250 in yz125 frame

Greetings from Tennessee  

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03 Feb 2025 13:43 #2

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Replied by RT325 on topic Dt250 in yz125 frame

No chance sorry as a far bigger longer motor. Good plan though, I like plans like that. I ran an RD200 in a PE250 frame for a while, sounded good with twin chambers but wasn't that  fast.
03 Feb 2025 14:29 #3

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Replied by Robdangereux on topic Dt250 in yz125 frame

Brilliant thank you an absolutely definitive answer. Cheers
03 Feb 2025 16:59 #4

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Replied by RT325 on topic Dt250 in yz125 frame

Forgot to say welcome from NZ. I raced a "79 YZ125F back in the day. Had it on Methanol & was a rocket.
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03 Feb 2025 19:44 #5

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