what you are calling a cold start is When an engine has been sitting for a time, the internals become dry and need lubrication. in your case i would inspect all fluids, fill if needed...pre-lube or prime the engine without actually firing it up. if you have knowledge of removing the distributor and priming the oil there with a drill and shaft extension to manually operate the oil pump this is the method i would use. i have experience at this method and experience with installing and removing a distributor properly, if you dont have this experience i would not remove the distributor. i would remove the spark plugs while marking wires so they can later be installed properly then Spray a small amount of penetrating oil into the spark plug holes and then turn the starter over for a few(3), 6-10 sec intervals. allow starter to cool approx. 20 mins and repeat. this should lubricate the internals after doing either of these methods i usually listen after turning oil pump or cranking of the starter into the oil fill hole after removing the cap you should be able to hear oil draining into the pan,(ya you can actually hear it). when you hear this you know oil is being circulated properly. reinstall plugs and wires...then i would add some new gas on top of the gas in the tank..6mos old gas is not too bad though as long as its sealed properly with a gas cap unexposed to atmosphere....then i would crank drive a short distance allowing it to reach operating temp....park then change oil...
