I am Tim from Oklahoma. I am mainly interested in diesel bike conversions. Here are some small 2 HP diesel engines from china http://www.alibaba.com/product-gs/447527102/air_cooled_diesel_engine.html This one is 3600 rpm,46lbs,L13"xW15.5"xH15" 3/4 shaft 1/4 key-way about PT/H economy or better.
Here is another one but it has a fly wheel to take power from http://www.alibaba.com/product-gs/469667269/2hp_small_diesel_engine.html
I am now tracking down A 1HP diesel made in china http://www.alibaba.com/product-gs/330999587/Kerosene_Engine.html http://www.alibaba.com/product-gs/510160455/Gasoline_engine_152F.html http://www.alibaba.com/product-gs/231308750/Kerosene_Engine.html
Here is another one but it has a fly wheel to take power from http://www.alibaba.com/product-gs/469667269/2hp_small_diesel_engine.html
I am now tracking down A 1HP diesel made in china http://www.alibaba.com/product-gs/330999587/Kerosene_Engine.html http://www.alibaba.com/product-gs/510160455/Gasoline_engine_152F.html http://www.alibaba.com/product-gs/231308750/Kerosene_Engine.html