I bought a honda express a week or so ago. The first day it took two hours to start, ran long enough for me to crash it, then wouldn't run again that day. In the following days, I changed the oil and gas and cleaned both of those containers out. I replaced the air intake manifold because it was cracked, as well as the reeds. I cleaned the carburetor 3 times, making sure to get every nook and cranny. The only thing that doesn't, and never has worked is the battery, but I get good spark and my timing points are set correctly. The only thing rusty is the pipe connecting the head to the exhaust. (A few small spots of rust here and there, but nothing major) my throttle control screw was broken, (the part that screws into the carb) but I was able to fix that.
But, even after all this, and reading and re-reading this
To the point of memorization, I can still not get it to run well or at all. Sometime spraying starter fluid straight into the carb helps, but only for a minute at best. The petcock works on off and reserve but not on.
I am mixing 1 part oil to 50 parts gas in the tank, and using honda two stroke as oil in the oil tank and as the mix. I do this in case I have a faulty oil pump.
I also changed the transmission fluid. But couldn't get the front screw off and had to refill the oil (sae 30) via the drain plug which took two hours! :-(
What am I missing or doing wrong? I have set both the air mixture screw and throttle stop screw to every imaginable combination. I'm at the point of taking it to a shop or selling it.
thanks for the help and advice.