My 1983 Scrambler is tough to start after it has set for more than 2 days; I can remedy the situation by pouring a bit of gas into the carburetor. Once it starts no issues; like my fuel line to the carburetor loses its prime. 258 6-cylinder, Carter 2 Bbl. Any ideas as to how to get a more permanent fix? I'm not particular interested in upgrading to an EFI.