So I recently picked up an F3 and me and my buddy were riding it (last week) and it was working fine but just yesterday I picked it up today to go for a spin and it wont start up...Im a newbie with bikes so Im sorta lost on where to start to look for the problem. Im not to sure if its the battery but when I try to start it up all the lights are working but they slowly dim and even when I test the horn it slowly fades to the point where the horn no longer works....is this a sign of a dead battery? The guy I bought it off said the battery was about 2 months old.

 

sounds like your battery, hook it to a charger and see what happens. if its been sitting for a while then you might have to invest in a new battery....but you can always let sit on a charger for a few hours and then give it a try