The lightweight 80# Honda 8 Griz is referring to is the BF8A, very different design than the newer motors. It also has a 5 amp charging circuit (but only manual tilt/trim).
That weight list is off on some other motors as well. For instance, Yamaha lists the T9.9 w/ power tilt, trim, and elec start as 114# on their web site, not 93#. And remember that the weight typically cited in the advertising is without prop, cables and rigging, oil in the crank case, or any steering linkage. Factor those in and you are at the 125# Griz mentions.
Most of the other motors will be the same way. If you have the $$, the Yamaha T9.9 is the way to go right now. Just remember that on a 17' or smaller Arima, stern weight is an issue and you need to make some allowances for that.