hey guys, im working on a 440 kohler(brand new from richards relics) with a wda53 walbro carb. i had the carb rebuilt about a week ago,so i put the carb on the new motor and put the unit in the agro and it worked great except the clutch was shot so i pulled the motor back out got another clutch and put the motor back in, now the carb stopped sucking fuel. i put a vac gauge on the motor and its drawling vac from the motor,fuel lines and fuel filter are all new. mess up in rebuild? is there a after market fuel pump i could use ?