Help on how to install cam shaft chain

I am currently replaceing all the gaskets on my quad and fixing what needs to be fixed. I have the right side crank case cover off so I can see all the gears for the timing chain etc. My question is is their a certain way the chain goes on the gear at the bottom in relation to the cam shaft gear? I have a brand new Clymer manul I bought off of e-bay and I can't find anything in it that tells me that their is some marks or what not. Now I found some marks on the top gear that attaches to to the cam but none on the bottom.