My zdz40RV has just run 3 hours of brake in without any problems.
But now all the sudden it will not run with the cylinder DOWN ? Cylinder up theres NO problems.
It sucks fuel and fires ones with choke closed. I close choke and it fires and runs for only 5 sec. and dies. This procedure can be done over and over again.
Any known isues with carb/cylinder just working mounted up and not down ?