I have a kawasaki FH721 thats not running right. It would miss, surge, sputter and backfire occasionally. I removed the carb and sprayed cleaner and compressed air throughout and reinstalled and made no difference. I then did plugs, filters, oil, valves, checked coils and such in the process of elimination. I then removed and swapped carbs with an identical machine and have determined that the problem is indeed with that carb. My questions are... 1. Is a rebuild kit available and are they reliable? 2. Are they easy enough for one that is mechanically inclined( Id hate to have a hundred parts in a puzzle) 3. What would I expect to pay for a kit vs. just replacing with a new carb. Gravely PM252Z's Model# 992066 25HP Kawasaki 52" deck w/ Eye Q Serials 000522 and 000523 Thanks guys!