Go back and set the timing to the 'F' mark , that never needs changing .

Just for fun , after you've checked for a vacuum leak , check the charge rate at the battery whilse it's running....

Back firing out the carby can also be running too lean , IE : vacuum leaks and too small jets .

-Nate

DeepBarney wrote:

I got my jets in yesterday and installed them. And it'll fire first kick and idle, but when I rev it up it wants sputter and die, just off idle it does this. And it's developed a habit of back firing. No amount of adjusting the carb or timing at the points plate will solve this. When in gear it feels real weak like it doesn't have the power hardly to move itself. If anyones got an idea please feel free to advise me. I posted in more detail here: http://hondatrailcts.yuku.com/topic/7793#.U02r1KJTYcY