There is a clip missing.----Easy to find as it was used for many years.-----Find it on the accessory parts pages .----Or see if your local boat shop has one laying under the work bench.
Not if it is hooked up to a monster battery on a separate trailer.-----Was at a museum where they had a monster mining shovel and it was electric.----Fairly big cord to power it.
If you ICE product runs out of fuel you can carry a container of it to your vehicle.-----I think I should put a hefty generator in the back of my truck.----Advertize that I am ready to respond for those stranded with EV products.
Could be the oil that is mixed with the gasoline.------Some fuel mixture goes right through the motor.----It does not get compressed .----It is not burned.----It is wasted and ends up going out with exhaust.
Visit a marine store.-----Ask about cleaners for outdrives.------As water evaporates from the exhaust housing the minerals stay behind and build up.-----