I've run some B-12 Chemtool in the gas through this little guy without noticeable improvement. It runs O.K. in the tank with full choke, runs best at 1/2 choke, and it doesn't run worth beans with choke in as shown in this video. Should I just forget about it or spend the big bucks to have the carb cleaned by someone who knows how? Any other ideas?
http://www.youtube.com/watch?v=3uPp0rSbP24
http://www.youtube.com/watch?v=3uPp0rSbP24