i have two kawasaki prairies with 800 big bore kits in them.. one is a strictly drag bike and the other is a play bike i use nitrous on, dual wheels etc..for atv pulls and then just to play around the house.. my brother has a 750 brute and my father has the camo 750 brute... so yes we have some kawasaki's around the house... you can check out my avatar to see my drag racer..($25k in invested)
the vtwin motors are incredibly strong.. and bullet proof.. the only problem i have had out of any of mine is the kebc malfunctioning.. other then that, not a single problem.
if you do buy one though, spend the extra money and get the extended warranty.. you do not have to buy it from your dealer either.. most of them are around 450-500 dollars.. we bought ours from a shop in cali. or florida for 375.00.. it is well worth it too bc if the actuator or other electrical problems arise it will cost you 300.00 right off the start for any of the boxes under the seat.. ive owned mine since 02 and just bought the other big bore bike last fall...
and by the way, if any of you guys need parts for your prairies i have two parts bikes laying in my garage with anything and everthing for them...