Uncategorized revving up/down May 10, 2016 dstech I’m new here, hope I got the right section. My TRX 420 FE-2011 revs/bogs after it gets good and warmed up. Unclogged the fueltank vent tube. when it’s cool, it runs like a bat out of hell. Any tips? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related