I have removed the valves and cleaned up the valves and seats. I also leak down tested it and it has a very slight ex leak. It acts like the new carb is not letting fuel thru. I have pressure and vac tested the carb and all is good.
I hear ya fish! I have worked on 2 of them now and they might be my last ones!
Ok I got it.....Late last night I remembered it will not build vacuum if the valve cover is not sealed!. I had the cover off and forgot it used very little pulse to pull fuel in.
Symptoms that caused this repair.
No start
Carb diaphragms were pretty stiff so I went with obvious and replaced the carb
still no start(has spark) will not pop off of starting fluid.
I then lean to the valves hanging open. I decarbon them and adjust them.
still no start.(has spark) I pull the cylinder and clean piston,valves,muffler screen.
Still no start (has spark) I change the coil ( they had problems with them sticking in advance)
Now will fire on starting fluid but not stay running.
I bump my head and remember I need to seal valve cover to make vacuum in order for the impulse line to work the carb so it will pump fuel thru the carb.
