Man, I want one in the worst way, any idea how far out the diesel motorcycle is? Preliminary tests show it getting 180-190 mpg.......

i want one too...

I was wondering the same thing the other day. I had a GL1800 GoldWing last year but had to sell it. Now that the weather is getting warm again, I've caught the fever again. This time I'd like a Yamaha RoadStar Silverado, so both my truck and my motorcycle will be a Silverado.

I believe polaris has had a diesel quad out for a couple of years now. I hadn't crossed over yet so i haven't been following it. Let me check and see if it still exists.

I think the diesel four-wheeler got dropped, but I may be wrong on that one.

While it would be really cool, I'm not sure it would actually be such a great application.

We're after lightweight, quick-revving engines. Size is a real factor here as well.

I always thought the same thing would be true in prop-driven airplanes, but diesels are definitely gaining ground in this segment, so I guess we'll just have to see!

The US Military has been running diesel fueled motorcycles for a number of years.
(dirt bikes) They want everything to use the same type of fuel for supply ease.

It's so funny that this thread popped up because i've just started to look into this...guess great minds think alike...LOL
The military version is called a M1030 and is based on a KLR 650 kawasaki modifid by F1 enginnering...
Here is there link

http://www.f1engineering.com/index.html

Other Diesel motorcycle links:
www.dieselmotorcycles.co.uk
http://www.ecycle.com/powersports/hybrid.htm

There is a guy in Pennsylvania that put a diesel in a Harley He worked at Detroit diesel--got the idea--he gets 95 mpg using b50 bio diesel!!

Greg Carter Vermont

I would like to experiment with a Hatz diesel (German made, Northern Tool sells them) on a small street bike. Probably would try to drive it with a variable pitch pulley torque converter. They have one that is 10 HP, I would think that would be able to achieve the speed limit on a light bike, plus achieve over 100 mpg.

Those little Haatz diesels are pretty damn tough in my experience. I ran one used in a walk-behind trench compactor that absolutely got abused to no other. It became a little hard to start, but nothing too out of the ordinary.

I was impressed it handled the abuse as well as it did--motor got a steady diet of dirt along with the fuel and air.

We have a 5hp Hatz engine on a walk behind Bomag roller for 24 in wide compacting jobs, the total weight is 1250 lbs and this runs 12 hours on around 1.5 gallon of fuel.