Big Red 250 lighting issues.

[Bobbywolf]

Hi guys. I have an issue with a 250 Big Red, that I can't seem to get any help on. When I start it up and turn on the headlight, it only really works well on high beam, and this is only at idle. If I rev the bike, or drive it, the light gets substansially dimmer. I would have thought that it would work opposite of this. Makes for crappy riding at night.

Any Ideas?

[nouseforaname90]

My dads '83 and '84 Big Red's do the same thing whenever he doesn't have a battery in them. Toss a battery in there and you'll have a bright headlight.

[atctim]

Or this might sound like a grounding issue to me. Check both battery terminals as well as your main ground.

[Bobbywolf]

Battery is good. Even when I put it on slow charge overnight and thow it in the bike it does this (Plus the batt is only 6 months old). Grounding issue could be a possibility.

[86bigred]

battery is no good