I have Tried everything to start these TaoTao 49 cc Mopeds. bypassed the vacuum activated gas petcock. Went straight from gas tank to carb. While plugging the open vacuum hose and petcock. It will start with hand choking or starting fluid. If i continue to use hand choking or starting fluid it will eventually run on its own. But after sitting for 15 min it wont start again. I bought two new carbs, no change. One moped has 10 miles the other has 50 miles.
Only because I thought that breaking them in might fix the problem of carburetor issues. It didn't.
If anyone has a solution ,Please let me know. Is there a different carb all together that might work ?? A Weber or Mikuni. I'm willing to try anything . Maybe building a manifold for a lawnmower carb.