The weight bars on the LC kawi with a 60 are 40lbs each. There are 3 of them so that totals 120lbs. total balast.
I have removed all 3 of my weight plates, and have noticed MUCH improvement in the handling. In EXTREME uphill conditions (ie: hitting a small bump and accellerating uphill at the same time) I can experience a slight CONTROLLED wheelie. BUT REMEMBER......
I am running Zero-Flat caster tires (at least DOUBLE that of an air filled caster, plus I am using the weight bar that the Ultra-Vac came with, plus I have the mounting brackets for my Gator Rator mounted.
With me being 100% sure, you can safely remove 1 weight stack (40 lbs) on a STOCK unit and experience nothing but improved handling. Removing 2 on a totally STOCK unit and you could run into problems in EXTREME uphill maneuvers with it getting a bit light up front. Thats as far as I'd go STOCK.
However if you NEVER do hills removal of all 3 would benefit greatly in the handling and wetland performance.
These recommendations are purely suggestive and NOT to be followed without proper care.