I installed a baja designs squadron pro headlight on my 14 rmz450 using baja designs wiring harness. The light works great and is very bright but when you rev the bike up with the light on it seems to starve for fuel/bogs out. The bike run 100% when the light is off. Could the light be drawing too much power and robbing the fuel pump? I measured 13.8 volts at the harness headlight connection so I do not think the bikes charging system is bad. Any thoughts? I wonder if the light could be the problem such as the built in over voltage system activating and causing the problem, but I really do not know. Thank you.
no matter which system it is affecting you still need to keep it from drawing so much power.
try different sizes of resistors interrupting the power wire to the headlight which will reduce the current.