How do you tighten a chain on a quad bike?

You need to buy this thing called a tool chain, and then go to Yahoo.com and just in the search bar put how to tighten a bike chain, and you can find videos on how to do that. The tool chain only costs about 10 bucks and it's easy to use, just that some of them can break very easily so make sure to look at the reviews before buying it. Hope this was helpful