RE: Cox Surestart Won't Live Up To Name.
Besides checking and resolving the possible fuel draw and tank placement issues, the engine really needs to be port primed with a small squeeze bulb or, better yet, a syringe with a fine needle filed flat at the tip for safety. On a Sure Start this will be a fine mist through the open exhaust port. Make sure the filament in the glowhead is orange/yellow hot when the plug clip is on. Two NEW alkaline D cells wired in parallel will take care of that. Don't even bother opening the needle valve until you can get the the engine to start briefly on a prime. Then open the needle 4 turns and try again. If the engine starts and runs you can needle down for higher RPM and smoother running and pull the plug clip off.