Originally Posted by Pleiades

There's not really a lot you can do with the ABS model cheaply or easily. The fork tubes are not long enough to run longer springs of gain any extra travel and the rear shock is a shorter stroke version. I would not advise raising links at the rear as you have no way of raising the front to match and you'll mess up the geometry and end up with a twitchy steering and a front end that will tip/dig in on corners.

If you seriously want to raise or improve the suspension on a 'ZA' model you are probably best sourcing a used set of standard length forks and linkage from a non-ABS bike and buy yourself some aftermarket fork springs and an aftermarket full-length shock. Or, if you have deep pockets, maybe a USB front end and fancy shock to match.