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Makotosun

Can anyone identify this rotor assembly please?

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Can anyone identify this rotor assembly please? was created by Gr8uncleal

It came from the US with a load of RD400 parts. It clearly isn't for a RD400 and might not even be for a Yamaha!

Looks like an advance mechanism on the inside?

Many thanks.

 
 
06 Dec 2021 12:04 #1

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Replied by RT325 on topic Can anyone identify this rotor assembly please?

Probably an early DT175 like "74 A model without researching.
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06 Dec 2021 13:46 #2

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Replied by MarkT on topic Can anyone identify this rotor assembly please?

DT175 twinshock, not sure the exact year.
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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06 Dec 2021 16:10 #3

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Replied by Gr8uncleal on topic Can anyone identify this rotor assembly please?

Thanks chaps, this gives me a decent starting point.
06 Dec 2021 23:38 #4

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Replied by asco on topic Can anyone identify this rotor assembly please?

I believe the round holes indicate it’s for a CDI ignition.

a
YAMA-LAND RESTORATION,
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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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07 Dec 2021 00:33 #5

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Replied by Gr8uncleal on topic Can anyone identify this rotor assembly please?

Thanks Asco.

I couldn't find anything for a twin shock DT175 and was wondering if the pair of spring mechanisms on the inside mean that it's for a twin cylinder bike?
07 Dec 2021 00:41 #6

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Replied by Pete-RT1 on topic Can anyone identify this rotor assembly please?

Alan, I'm gonna guess at an XR80
abmotorsports.ca/products/7736-flywheel-rotor-7736
Yamaha CT1 007
Yamaha CT1-B The Greenie
Yamaha CT1-B The Doppelgänger
Yamaha CT1-C
Yamaha AT1-C
2020 Honda CB500X
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07 Dec 2021 01:36 #7

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Replied by RT325 on topic Can anyone identify this rotor assembly please?

Well there ya go then. Too smart for my own good. I hadn't taken notice of the double acting spring arms & jumped straight in 'knowing it all' haha. Always things to learn. & top marks to PETE-RT1 looking at the link.
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07 Dec 2021 01:56 #8

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Replied by Gr8uncleal on topic Can anyone identify this rotor assembly please?

Thanks Pete, that looks spot on. 

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I would also appear to have the stator and coil.

Amazing what turns up in a job lot of RD400 parts - there was also a Honda CB450K/750K brake caliper and a Honda 400/4 petrol cap!

Thanks again to all who responded. 
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07 Dec 2021 02:05 #9

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Replied by yamahahaha on topic Can anyone identify this rotor assembly please?

XR75 /   XR80

1977-1991

????????

 
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07 Dec 2021 03:40 #10

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