Very little is know about the history on this one. Found it on Marketplace and felt like I had to have it. I’ll get a real good first look soon.
’ve still got a lot on the go, but I wanted to take a quick look at the AT1 and see what I was working with. I decided to take a look at the carb. It’s a Mikuni VM24SH, and it was actually in better shape than I expected. I gave it a thorough cleaning, removed the aluminum oxide corrosion, and polished it up. After rebuilding it with a Keyster kit, it looks almost new. With the carb sorted, I turned the engine over by hand for the first time. The good news is it’s free. The bad news is it feels a little gravelly. It’s too early to say for certain, but my first suspicion is the crank bearings. If that’s the case, this project could get a lot more interesting. I’ll know more once I get into it.
The carb was surprisingly not terrible. The pilot jet was completely seized and had to be removed with an easy out. It was, frankly, the easiest easy out I’ve ever done. After an u…
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Status: Planning
Slug: red-ripper
Created: June 19, 2026
Last updated: July 16, 2026
