No it is not normal. This is an indication there is a short somewhere. The cord should be replaced immediately.
The correct spelling is umbilical, and this cord is attached to the baby's navel when it is born. The baby receives nutrients through this cord prior to the time the physician cuts it.
When a baby is born the midwife cuts the umbilical chord which attaches it to its mother.
There is a vacuum line attached to the back of the headlight switch on the dash. When you pull the switch out to turn on the lights this allows vacuum to open the light doors through rubber vacuum lines. When you turn the lights off this cuts the vacuum to the lights and a spring opperates the doors and closes them.
It means the baby's father is taking his first step to the passage of the rite of fatherhood.
It is not possible for a baby to be born without an umbilical cord. It would not survive in the womb without a placenta delivering its needed nutrients.
i would try a can of ether pray all vacuum lines one a time. when it ides up then know where the leak is.
The Flowbee actually cuts hair by using a vacuum and built in razors that work like scissors. The vacuum holds the hair straight up in a line and the scissors cut it.
the sensor for your side stand may not be working so it thinks the stand is down and cuts out as a safety feature.
They could if they have cuts in the outer layer of insulation. The outer sheath of the cord is what is used to protect the inner conductors of the cord. Any damage to it should be repaired immediately. A properly maintained electrical extension cord should give years of service.
check the side stand switch , this cuts out the engine if it (the side stand) is down when you put the bike in gear .
Perhaps a vacuum leak at the power brake booster or the check valve on the booster.
You may have a brake booster that is leaking. The diaphragm may be busted. You will need to remove the brake booster vacuum hose and do a vacuum bleed down test. If the booster will not hold vacuum it needs replacing.