YS624 - Wisconsin-Robins engine?

[AaronT102]

Just acquired an 88 YS624.  Love the machine, runs like a tank.   I was told by the person I bought it from that the engine was made by Wisconsin-Robins.   Is this correct?   The guy I bought it from owns a small engine business.

Thanks

[YamahaGenuineParts.com]

I have to tell you that your engine is 100% Yamaha

[Underdog]

I'm sure our engines are genuine. No doubt about it. But take a really close look at a similiar vintage WISCONSIN-ROBIN and you might be surprised.  I know that I was.  The parent company is listed as Fuji Heavy Machinery.  The same company that produces and distributes snowblowers in Japan.