new info on gear change.
top 38 meshes with 46 tooth behind 80 which meshes with 120 to 90
the gear in front of the 120 which is a 30 tooth coarse does not mesh with 38 or 46
Gears Z80,Z90,Z120 are Module 1. Gears 38 and 46 are unknown (i don't think they are metric)
the single gear 30 i...