Ludicrous idea time

**tylerwatts** · 06 November 2017

Originally Posted by Spaceweasel

Cut down a K1200LT bellhousing to connect the motor and transmission.

Attachment 7405 Attachment 7406 Attachment 7407

Hi Spaceweasel
Can you share a few more details about this process please? Was that the same type of 4cyl motor as found in your donor? Or different to match your RS trans? Is there a natural bell housing to unbolt from the engine?
Thanks

Cheers

Tyler

**Spaceweasel** · 06 November 2017

Originally Posted by tylerwatts

Can you share a few more details about this process please? Was that the same type of 4cyl motor as found in your donor? Or different to match your RS trans? Is there a natural bell housing to unbolt from the engine?

The bellhousing comes from the previous generation of K-bikes. This was a natural fit with the transmission, as BMW used the same unit for many years. The motor side is almost exactly the same size as the 9.25" Warp9 motor face, although the holes are in different places. The actual connection between output shaft and trans input shaft is with a lovejoy-type coupler with a Hytrel spyder. The idea is (from front to back) motor mount plate / warp 9 / motor mount plate / bell housing (surrounding and protecting the coupler) / transmission mount plate / transmission.

Of course, the current bell housing doesn't fit with the current transmission, so back to the shop...