It's a four stroke liquid-cooled made specifically for Dazon. Right now I suggest the 150 with the hop up kit. Not as complex and just as fast. Plus if you are getting it delivered assembly is much easier.
i spoke to the guys at the Dazon factory in Tempe, Arizona and they proved to me that Dazon actually makes their own engines (sent pictures of the factory and all of the workers were wearing Dazon uniforms), not buying the engines from some cheapy engine company in China. The hammerhead, Carters & Kasea buggies all buy their engines from the cheapest company, which varies from month to month, just depending on which engine is cheaper that month. I guess that would make it difficult for them to stock parts?
Just the fact that Dazon builds their own engines might be the reason why they always have parts in stock. Kudos to Dazon.