I have a old OS nitro engine from 1964. The engine was worked on for a month by me ad still only chugs and sputters then dies. I will get a gasket sealant from a auto store so there wont be a chance of air leaks. I also need to seal my carb bolts from fuel leaks because they are custom made and may be faulty. Should i get a electric starter for it? Where do i get one that is very cheap? Like thirty dollars or so?