Got a 05 Rancher TRX400FA last Friday. first ATV. Long story short. Got it home and found the carb leaking fuel at the overflow. Got a rebuild kit. Pulled, cleaned, installed rebuild. Tested, no leak. Installed and tested. No leak. Short ride around yard and park it. Guess what? Carb is leaking again. Is there something I am missing? Or should I just buy a new carb?