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Makotosun

Do the 250 and 400 share the same crank?

  • DT Tim
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Do the 250 and 400 share the same crank? was created by DT Tim

I've searched around the forum with conflicting answers, looking at a crank but the seller lists as 250 and 400.
10 Feb 2021 13:59 #1

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Replied by MarkT on topic Do the 250 and 400 share the same crank?

Absolutely NO.

This is a remnant of the "shared parts lists" that you will see discussed many, many times if you've read through the forum.
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
10 Feb 2021 14:07 #2

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  • DT Tim
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Replied by DT Tim on topic Do the 250 and 400 share the same crank?

Kinda makes sense but it's nice to clarify with you guys, cheers MarkT 

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10 Feb 2021 14:23 #3

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Replied by RT325 on topic Do the 250 and 400 share the same crank?

That's interesting looking at partzilla & swapping from one diagram to the other. As Mark says NO--well not in theory but possibly in practice with mods. I'll probably bolt straight in but the extra stroke will have the piston coming out the top going 400 into a 250. Did that with a 360 crank in a 250. Anyway--sorry, i'm sure i'm off the case & the reason for your question. Made a fast 250 though haha, going 360 crank when i spaced the cyllnder up 6mm. Ok i'm talking a 360 crank in a 250 but conversely a 250 crank in a 400 would make a slow 400--or 3 something cc. Ignore me!!.

The more i look at the rest of the two parts lists the more confused i become. I'll stop looking.
Last edit: 11 Feb 2021 00:20 by RT325.
11 Feb 2021 00:16 #4

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