I recently acquired a echo es-1000. I cleaned and rebuilt the carb and replaced the primer and installed new fuel lines and the fuel tank grommet. I press the primer bulb and im getting air pushed out the return line into the fuel tank. But the pickup line with the filter is not sucking fuel up.. I recleaned the carb and blew air through all the passages i could fine. Still having the same issue. What else could i try before i buy another carb. Would you even fix this blower? It did start and run good when i put some gas down the carb.