The hard part is getting started,just follow directions with your kit and pay special attention to what you remove so you get her back together.It looks harder than it is.
I would suggest the renew kit as well,its like 20.00 bucks and 2-3 hours of your time.Black Magic or Mothers back to black works awsome on all the black trim.
I run itp XTR's and wont buy anything else.I've never had any issues in the mud and the radial tire is far better riding on hard surface.I have never used the zilla's so this is a bias opinion.The zilla's do make any quad look really mean though.
I would like to learn more about cutting the spring in the carb.
I have plenty of power and can get through mud larger quads wont even attempt.My problem is the larger ones can wheelie much easier,being shaft driven the rear rises upon acceleration.So any horse help would be great.