How can I start getting sales and more traffic on our website?

[I know nothing]

First of all I don't know what advertising, SEO, social media, etc. you are doing to try to drive traffic to your site. That probably has a lot to do with it. But just looking at the site itself, frankly, it's like looking at any page in an auto parts catalog which is totally boring unless you're a fanatic of that stuff or in need of a part. Nothing on the home page is exciting or remotely interesting. And the name of the site is a little unclear. The first 2 items shown are a gasket kit and a lighting kit. How the heck does that have anything to do with "power sports unleashed" ? Also the photo of the shop that stretches across the top is too horizontally stretched out and looks weird. I think your site needs some re-conceptualizing to make it more appealing. And also you're going to have to spend some money on advertising.