I have been searching for a suitable engine since I bought the plans, but last week I found one laying in a garage. It is a Kawasaki ZX600 motorcycle (Kawasaki Ninja ZX-6R) from ’98 which has incurred an accident. I paid for it 400 €. The front is undone, but the engine is in perfect condition. It has 10.00 km, 75 kW (100 hp) @ 12500 rpm. I chose it not only because it is compact and has a 6-gear gearbox included, but it is powerful at the same time.
I have designed and build a framework for it in order to be easily unmounted and to have fully access to it for further changes.