my 1985 dodge ramcharger royal se 150, is hard to start if it sits for about a week,
if i run it every other day it starts fine,
when is does not start i shoot two shots of crc throttle body cleaner in the carb.
and she fires right up... does the throttle body cleaner do any damage to the
engine, or is there something i can do to get her to start normal if it sits for
longer than a week

 

You have a fuel problem. Several things can be the problem. Fuel siphoning or evaporating, or a weak pump not wanting to pull fuel fast enough. The diaphragm on a mechanical pump might be failing because of ethanol in today's gasoline. If you have a mechanical pump, it will be low on the passenger side of the engine. Look for any dry rotted hoses that might let fuel flow back to the tank a little. Since it runs okay, I think your carburetor is okay.

If it is a weak fuel pump, I'd retrofit an electric fuel pump near the tank. Wire it so it comes on with the ignition key but put a hidden cut off switch in line somewhere so it's harder to steal.

 

Just was i was thinking. It may be leaking out also.

 

I've also seen metal lines rust and have pin holes in them. This allows a little air to get sucked in. Usually this will cause the engine to bog under steady acceleration. I found it when I added an electric pump at the tank and the fuel line looked like one of those soaker hoses, but with gasoline rather than water.