Your local hobby shop is unlikely to help you tune your engine. You'd do better to find a flying field in your area.

A new engine will often start with a flip of the prop if all the instructions supplied with the engine are followed to the letter. But a new engine needs to be broken in before it can be properly tuned, a process that can take several tankfuls of fuel, and during the break-in process, while you're fiddling with the adjustment screws, it's possible the engine will at times be reluctant to start. You can get through this period without an electric starter, but your flipping fingers may get very tired.

You should take seriously the advice here about flipping by hand. The engine doesn't have to be running to damage your fingers--some of those non-starts hurt the most.