battery dead

Hi all, This is my first post and I’m electronically challenged so go easy on me. I recently bought an 81 xs 400 off of Facebook. Bike ran fine when I bought it. Electrical start, lights, dash lights everything worked. The battery died out the first day and wouldn’t charge so I bought a new one...

Hey everyone, I'm super new to this forum and super new to the XS400. I recently picked up a 1979 XS400F and the battery is real old, and real dead. I really want to replace it with a maintenance free battery but I can't seem to find one that says it works for the 1979 model. BikeBandit says...

Hey guys! So I have been having a string of issues lately with getting my bike to start. I have an 81' xs400 (w/ kickstart). I changed spark plugs, oil, checked ignition coils, checked fuel lines, etc and throughout my trials, my bike has almost always started up within a few kicks (my...