I just bought a yamaha DT-175 as my first bike, it runs great and is a blast to learn on, but I find that as you drive, everything gets dimmer. I had it out today for almost 2 hours, and by the end, the headlight was pretty dim (with it running, dead when turned off) and the turn signals wouldn't work at all. I know it must be producing SOME power because it runs even with the battery dead, but the lights are very dim so it clearly isn't producing enough to keep the battery charged and everything working at full power. Any suggestions? I've never owned or worked on a bike, but have fairly extensive experience in cars, which is where I draw my conclusions from, so I apologize if any of the assumptions I made are wrong.
Thanks,
Matt.