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Can you solve the mystery???

  • OlSchool0097
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Can you solve the mystery??? was created by OlSchool0097

Hello All .. I cannot for the life of me find any info on this bike .. it says G3-101### on both the forks and the engine which makes me think it’s a YG3?? Does anyone know if it’s the same engine as the YG1? My father in-law got it from a barn find a few years ago and gifted it to me.

I’ve started taking it apart and need new rings and possibly a piston. Any help is much appreciated!
10 Jul 2020 15:43 #1

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Replied by mdscott on topic Can you solve the mystery???


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Replied by OlSchool0097 on topic Can you solve the mystery???

thanks!
11 Jul 2020 08:57 #3

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Replied by MarkT on topic Can you solve the mystery???

The YG series was made for decades... YG3 is likely just not a model that was sold in the USA....

"G" means it's an 80 (actually 72cc). The "F" was a 50.

YG3 is likely to be virtually identical to the YG1 models we got in the US... looks like a YG1. Piston and rings from the YG1 should be compatible.

Just be sure to buy a matched set... Yamaha changed the ring and piston designs over the years so you need to make sure ring design matches the piston groove design.
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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11 Jul 2020 09:12 #4

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Replied by OlSchool0097 on topic Can you solve the mystery???

Ok .. Thanks for all the info .. Helps a lot! Cheers!!!
11 Jul 2020 12:07 #5

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