Can an individual start a successful small home business building go-karts and shifter karts? -

Short answer: yes. Well, maybe.Put together a business plan that details:1. Who your target customers are, how much they re willing to spend on this stuff and how they meet their go-kart needs currently.2. Who your competitors are, and how you can position your business to have sources of competitive advantage: better product, lower price, special features, location, etc.3. What your overhead expenses will be: materials, utilities, loans for equipment you need to purchase, insurance, travel marketing expenses, etc.Then run the numbers! Using conservative estimates, can you sell enough go karts, at enough of a profit margin, to cover your expenses and leave you with an acceptable net profit?

Sure, if you can find people to buy those in this economy.

YES! That may work out to be Very Profitable.