He has no memory of the incident, but can vividly remember a paramedic saying "let's give him morphine".
The Yorkshire Air Ambulance (YAA), which is based at Nostell, dispatched their helicopter and James was flown to the nearest major trauma centre, Leeds General Infirmary, because of the extent of his injuries.
Tests revealed he had broken his spine in four places, suffered internal bleeding and seriously damaged his bowels.
The operations director for a food company spent 21 days in the hospital and has underwent surgery four times.
James is still recovering, but is now able to walk again.
However, he has now registered to become a volunteer for the charity, and providing his recovery goes well, he is planning on running eight miles from his home in Wakefield to Leeds General Infirmary to raise money for the charity later this year.
He will be joined by 10 of his friends, family and co-workers.
James said: “I had heard of Yorkshire Air Ambulance, but I had no idea that they are a charity.
"If it wasn’t for them, I would not have made it to the hospital in time by land ambulance due to massive internal bleeding.
"I’m really grateful for all they did and want to give back to them by doing all I can.”
As an independent charity, the YAA needs £12,000 a day to keep their helicopters in the air.
To find out more about the Yorkshire Air Ambulance, click here.