I understand that carbs are your weak area. Not trying to insult your mechanical abilities. If you were to take the carb apart would you be able to put it back together? If so, remove the carb, remove the float bowl, with the carb upside down try to hold it level. See if the float and the base of the carb (where the float mates up to the carb) are parallel. It doesn't have to be exactly perfect, but it should be very close to being parallel. If so then the float height isn't your problem. Now if the front of the float (opposite side of the hinge side) is tipped downward while the carb is still upside down then the float is too high. If so, the float may need to be adjusted if it has a brass float. If it's a plastic float then the needle and/or seat could be bad, or the float itself is warped. If the front of the float is tipping upward then maybe the float is sticking. If you turn the carb around so it's in it's normal upright position then see if the float moves/drops. If it doesn't move gently try to move the float downward and see if it frees up. If it doesn't free up chances are the needle is corroded or rusted in the carb. If that's the case then you'll need to try and remove the float by pulling the hinge pin out and hopefully you can manipulate the float completely off. Then use a pair of pliers to pull the needle out. Then try your best to clean that area out so the new needle won't stick. With the needle out look at the seat to see if it too is corroded. If it isn't corroded install a new needle, reinstall the float, then with the carb upside down see if the float is level with the base of the carb. If it's level reinstall the float bowl, try to keep the carb level without bolting it back to the engine, rest it on the frame if you can, hook up the fuel line, pour very little gas into the fuel tank. If you can see through the fuel tank then mark the fuel level so you can see if it drops. If you can't see through it, don't worry. Just check to see if you can see gas running out the next few minutes. If not let it sit overnight and see if it leaked. If not then bolt the carb up to the engine, change oil like no2498 suggested, and see if it starts. There's so many variables so I'll stop here for now. Just let us know what you encounter and try to post some pictures if possible just in case someone see's something so we're not sending you on a wild goose chase.
