During a recent run up and mag check we discovered one ignition module was bad. This 912ULS has the older 6 and 4 pin connectors and a single replacement module can set a guy back nearly a $1000.

A forum member pointed me in direction of a Barnstormers add for replacement aftermarket modules and which can be found at https://www.barnstormers.com/classified-1604831-Rotax-CDI...

These come with longer wires to get the module away from the heat and vibration of the stock location on top of the engine and as a extra bonus a built in soft start. After mounting the ignition on the fire wall the first start was immediate and smooth and we picked up about 200 rpms in climb out.