I've just got done adding pictures to the instructions on HOW TO add a Biturbo to the Batavus. I also have the first draft posted on the difference between the Encarwi carburetors for the Batavus. If anyone has any information or experiences that would add to these pages please email them to me. The web site is: http://www.geocities.com/miniengine . Thank you.
Lamborn's Miniature Engines