When building the dry clutch we found out that we couldn’t use any parts from existing models who have a dry clutch. To make things worse the drive gear for the oil pump is situated at the rear of the primary gearbox gear and the primary gear shaft is to short to fit something else.
We found out we couldn’t use any other shaft and made a special nut and worked on the inner clutch drum to accommodate the nut and use it as a centre for the inner drum. The gear and outer drum had to be machined as well to make it all fit. The inner drum is made of aluminium and is bolted to the primary gear which still holds the oil pump gear. As you can see the side cover has now a large hole in it with clutch sticking out. At this moment there is no seal yet in the side cover but it will be made later. It will be the same set-up as modern bikes have.
Progression is slow like it always is when you are working on innovations. There hasn’t been a testdrive due to snow and terrible amounts of salt on our roads. But we did manage to get some parts together and build a bike just to try and fit the engine and see how other components will work.
Here is a picture so far. One of our engines is near completion and things are looking great ! If the weather gods are good to us there can be even time for a test drive.