About 1980.
Yes you can.
530lbs new about 450 bald.
The 1989 Kawasaki KX80 is not tubeless; it typically comes with traditional tires that require inner tubes. Tubeless tire technology became more common in motocross bikes years later. If you’re looking to convert to tubeless, aftermarket modifications would be necessary.
Autozone does not sell tires so they do not have coupons on tires. You will have to go somewhere else in order to get a deal on some tires.
You can purchase Go-Kart tires online from the GoKart USA or GoKartParts websites. You can also purchase Go-Kart tires online from retailers such as Amazon.
Because they will leak little air as times go by. Eventually the tires go flat.
You could go to any site where tires are sold, and peruse their discount tires section. Or you could go to a site that specializes in discount tires. Like, http://www.discounttiredirect.com or http://www.tiremonkey.com/
Your mechanic may have tires at this location or other warehouse stores such as BJs carry tires. You could also go to a manufacturer, such as Ford(or the maker of your car) or Good Year. All should have tires for you.
If you were looking into purchasing tires from a company, I would try Walmart or anywhere that is reliable and if the prices are well, go for it.
to go faster and 10 tires they dont help
First, go to Michelin tires. Then, go to Good year tires. Using your knowledge of the two brands (or whatever brands you want to use), you have the ability to compare brands.
Yes, bike tires can go flat from sitting for a long period of time due to air slowly leaking out of the tires.