1990 300SEL Hard to start

[john2031]

I have owned this car for a year and I have been working on it when I have time. I am just now ready to put it on the road but still have several small things to repair. It was always easy to start until a few weeks ago. I am sure it is not getting enough fuel on startup. If I remove the breather cover a pour a small amount of fuel into the intake it will fire right up. I did drive it a little yesterday and it ran smooth. If it sits for a few hours it is very hard to start. It does not seem to be weather related. When I press on the flap in the intake I do have resistance but it is only pumping air no gas. Any suggestions as to the cause?

Problem #2. I was told something was killing the battery when I purchased the car. I I checked every circuit with a multitester. Circuit #2 was drawing to many amps to measure. I removed the fuse and overnight the battery was fine. Circuit 2 has the clock, radio, hazzard warning system on it.The radio is new so I don't think it is the problem. The clock does not work all the time so I think it is the problem. Can I unplug the clock without unplugging the tach? They are on the same instrument cluster.
Thanks for all the advice.