Rotax Balance Shaft Gears

This is a replacement balance shaft gear for the Rotax 122 and 123 engines. This part is famous for failing and replacements can be costly (if you can find them).

Of course this is an engine part so it has to be printed in an appropriate material. I have tested PP and it works well. You can also use the file to machine nylon or even steel gears. DO NOT PRINT WITH PLA OR PETG.

Also, I have transferred all of the factory marks for timing. 

Keep 2 strokes alive!