I need some help tring to figure this one out. I hooked up the grid heaters and now the light dim or flash running down the road. The grids are off as when I hit 20 the lights get brighter. Then when ever the fights dim and right back to bright. Checked the grounds and all feel tight the switch does not get hot, and its a new alt. The volt gauge dips when it does it and so do the cluster lights. Any ideas?
Joe
Joe