I am in the process of trying to get a 31cc engine on an old cultivator
running. It uses a Walbro carb. I haven't been able to get it running
properly. I have taken the carb apart, soaked it in cleaner, blown out all
the channels with compressed air, and replaced the parts that come with the
rebuild kit. I can get it to run, but I'm not having any luck adjusting the
low and high speed idles to get this to run without stalling out. I checked
the muffler to make sure it's clear and there are no screens that I can see,
just a straight path to the outside. I have noticed that every time I leave
it for awhile, when I come back there is gas in the cylinder and I must take
out the spark plug and drain it and dry the spark plug before I begin again.
I took off the gas tank and checked the two fuel lines and they look fine.
Is this normal? What would make the fuel leak into the cylinder when not in
use? I replaced everything inside, at least I think so. The rebuild kit was
universal, so there were a few parts left over. There were two aluminum
discs and a screen I didn't use because the ones in the carb were in there
in such a way as I couldn't figure out how to get them out. Otherwise,
everything that matched up with the kit was changed out.