top end rattle

Hey I have a 77 KZ 100LTD, I just got back from a 10 day east coast tour. On the last day of my ride I could only kick start my bike. when I got home I cleaned my conections and tryed to jump start it with a booster pack and got nowhere. I pulled the starter out cleaned it and put it back in. I kick started the bike. It started and seems to run okay. Other then a pretty nasty rattle in the top end. I am thinking it sounds like it is coming from the top front. Any thoughts on what I should be checking for would be great.

JT
1977 Kz 1000LTD
1965 Honda S65
1950 BSA Bantam D1

Cam chain too loose? Valves adjusted properly? exhaust clamps tight?

set your cam chain tension. I can almost guarantee that the front chain guide is broken. They are just a flimsy peice of metal. You will find it in the pan.

thanks for the help guys.