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The bike

Frame: Royal Enfield 2000 Military "Bullet", originally with a 500cc single cylinder gasoline engine

Engine: modified Kipor 11hp Yanmar clone diesel engine

Modifications: Water Injection, LED/HID conversions, engine thermal coatings, pocket porting, balancing, ramscoop, aerodynamics, metering, datalogging..

Royal Enfields
Royal Enfield is the world's oldest continuously produced motorcycle marque, beginning in 1902. Originally from Redditch, England, Royal Enfield became a well-known motorcycle brand in the twenties and on, competing against Norton, Triumph, BSA and others. World War II produced one of the most famous of all Royal Enfields, the portable, lightweight "Flying Flea" designed as transport for paratroopers.

For more on the history of Royal Enfields, click here

Diesel motorcycles

Today, there are no legally commercially available diesel motorcycles in the USA. So I had to build one.

More on diesels

Biodiesel

I chose to use biodiesel because it is far environmentally superior to regular diesel. Locally made from recycled vegetable oils, biodiesel avoids the environmental impact of drilling, fractionating, storing, transporting... and leaking... more on biodiesel

Can you just switch from diesel to biodiesel. ... As it turns out, the answer is no. Some modifications had to be done.

Bulletproofing a Bullet

The Royal Enfield is not the most common expeditionary bike for lots of reasons. But it has some great advantages too, including being able to repair just about any part. more

Efficient technology at work

Just how fuel efficient can you get?

Improving the engine

Water Injection

Metering

Real-time mpg recordingb