I’m pretty handy but not much for working on motor vehicles. I couldn’t find a shop willing to work on my Eton Viper 150, which hasn’t run in 3 years. I resigned myself to changing out the carburetor even though I have not done anything like it before. What did I have to lose since it wasn’t running anyway? Although it was a bit of a struggle since I didn’t really know what I was doing I did manage to get it done. I changed from a manual choke to an automatic one and somehow Eton in their wisdom provides a red plug for the automatic choke to plug into - it’s tucked into the wires underneath the handlebars. After doing some other minor service I started the engine and it purred- I was shocked. Now that I know how, I could probably change out the carburetor in less than an hour.