With the bikes we have chosen to love, there isn't an over abundance of current. So upping the headlight will put a strain on the electrical system. Not knowing what bike we are talking about, it probably came with a 35 or 40 watt headlight. Putting a 55/60 halogen, while a good idea, will draw that much more current. I did my 350F, but the law in my state does not require me to burn it during the day, so charging isn't a burden. If you burn the headlight on a 350F all the time, you will have to charge the battery when you get home. Judging from the other threads I've read here, even a 750 has some problem.
That having been said, there are alternatives or things you can do to help. Yes, switching tail, running, and turn signals to LEDs will help, but have their own issues. Flasher issues. You can get resistors to solve the flasher issues, but the savings in current are negated, leaving you with the same lack of current issue. The way to convert and still save current is to switch to a flasher that is not dependent on current to initiate flashing. Technically speaking though, this will not give you "all the current you need" for a halogen conversion. But there's even an alternative for that. But it's expensive. It's called an "HID" headlight. I don't fully understand how it works, but I believe it's akin to fluorescent lights. I do know they put out light equivalent to halogens at less current. I also know that retail is about $200.
