I am trying to get this Rupp to run , it has a Dellotoro carb on it . Cleaned the tank ,replaced fuel tank shut off valve , fuel line , spark plug ,it has a champion J8C , 60lbs compression . I did not remove the carb but did remove the 2- screws on the top shot carb cleaner & blew out with compressed air . It starts when you shoot gas into the carb for a second thats it . need advice please .