Apparently it was removed from the FCOM and QRH some years back; would make sense as if the auto start does not work then you have a maintenance issue requiring engineering support.
From the MM
GE90 5 min on, 10 min off, 5 min on. Then starter cooling for 10 min minimum.
RR 3 min on, N3 to 10%, 3 min on, N3 to 0, 1 min on ,N3 to 0, 30 min Off
Interestingly the MM calls them guidelines!