Japanese three-wheeled motorcycle

[David DeWeese]

Thanks everyone for the great information and photos! My friend will be thrilled!
He is a lifetime collector of Harleys, with around 100 or so vintage motorcycles, some dating back to the early 1900's. Not being on the internet, though, it is almost impossible for him to get the information he needs for this one.
He is trying to rebuild the valve train on it now to get it running. He knew about the Rikuo Harley clones the Japanese built, but says real Harley parts are not even close. Totally different design of the engine. Also interesting is that this trike has a rear differential, axle and leaf springs just like a small truck would have.
Luckily all the parts are there for it except the front fender, headlight and those splash shields on the front. Now he has some photos to work with to find or reproduce some of these parts.
If he gets it running, we'll pull it out to take some decent photos.
Any other information is still greatly appreciated.
Thanks again!
David