Contact sets rarely wear out on the ATCs due to low currents generated.
However the ATC70 points are prone to early failure where the rubbing block is worn down causing the points to close and eventually causing a no-start.
Replace yours now with these quality japanese made points.
Suits ATC70 73-85,
Also suits Z50A 69-78, Z50R 79-87CL70 69-73, CT70 69-82, CT70H 70-73, NA50 79-80, NC50 77-80, SL70 71-73, XL70 73-75, XL75 75-79, XR75 73-78, XL80S 80-85, XR80R 85-91.
