Oldbugs 10 Posted September 14, 2012 With......yep...a carb question. I recently became the owner of an 02 zuki LTF250F quadrunner. I'm the second owner with only 136 mi. on the clock, it's about as OG as it gets with everything still original and in perfect shape. Well the other day it started idling fast then slow then fast, you get the idea. Now this isn't my first go around with an atv so I figured the carb needed a good cleaning. I bought a rebuild kit through my local Zuki dealer and went to work, well the bowl was full of trash! Completely disassembled it and cleaned it all out, then blew it all out with air, poked around all the little holes and what not to make sure it was clean. I reassembled it and put it all back together and pulled the choke gave the starter button a tap and vroom! Fired right up! Sweet! Let it idle for a bit turned off the choke and purrs like a kitty, gave her a little throttle......uh oh...bogged out and stalled. Hmm maybe carb not full of fuel. Tap the start button, vroom fires right up, give it a lil throttle, Boggs down and dies. Hmmm now I've search all over this site and tried everything that I found like the fuel valve and intake leaks also check all the lines to the carb but I find nothing. What happened? It was running great other than the idle surging, now it won't rev up. Any ideas? Thanks Kelly. Oh and the plug was wet and black if that helps. Thanks again. Share this post Link to post Share on other sites Like what you are reading? Please help us by sharing this content.