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  1. 2012 bogging issues (in need of help)

    Yamaha YFZ450/450R (2004-Present)
    i picked up a leftover 2012 yfz 450, and since the first day i rode it, it has a slight miss at any consistent throttle position (best way to describe it, would be that its running out of gas).....and now after its running for a while it gets worse and worse i.e. i went riding and it had the...
  2. 2002 Kodiak 400 Idles Great - Dies/Bogs with any throttle

    Other Models/Brands
    I have a Kodiak 400 that idles fine but bogs or dies at any throttle. I have - Drained and replaced gasoline. Replaced fuel valve due to the screens being cracked. I have put all new jets in the carb. I have cleaned the carb 3 times, the last time i soaked and blew it out with an air tank. I...
  3. Jetting for 2006 yfz 450 BB

    Yamaha YFZ450/450R (2004-Present)
    Hey all. I just got a 2006 yfz 450 Bill Ballance edition with a full Bill Ballance exhaust/header combo. The bike also has a boyesen quick shot carb intake and boyesen reeds. Im running at about 1000 feet elevation at 60-80 degree weather. The bike has a slight bog on take off, any...
  4. Leak jet question...(again im sure)

    Yamaha YFZ450/450R (2004-Present)
    I have an 05 yfz450 and i get the bog/die when u whack it WOT. I plan on doing the "zip tie mod" but I also wanted to know about the leak jet and if it would be a horrible idea to just plug it fully with some JB weld or something. I obviously understand that putting ANYTHING foreign into a carb...