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carb jetting

  1. Another Carb Question...

    Yamaha YFM660R Raptor (2001-2005)
    Hi Guys, this is my first post so please go easy on me... I found plenty of Carb related posts, but nothing specific to my needs, so I could really use some help. I have a 2005 Raptor 660R that hasn't been used in years. I've pulled it out of storage, and have been working on it over the last...
  2. Bike Bogging/Stuttering 3/4 - Full Throttle

    Yamaha YFM660R Raptor (2001-2005)
    Bike Bogging/Stuttering 3/4 - Full Throttle [SOLVED] Ok so i have a 2004 Raptor 660 with 102mm bore, +4 stroker crank, Yoshimura Exhaust, K&N filter (air box stock). Jets #25 Pilot 180/185 Main jets. It starts and Idles PERFECT. Couldn't ask for any better however, I had a friend jet it for...
  3. jet kit help

    Yamaha YFM660R Raptor (2001-2005)
    so i have read that keeping the stock carb setting is not good. so I'm asking all of u in your infant wisdom what would be the best jet kit both performance and bang for your buck? i have a 04 raptor with no mods besides a modified air box and a k&n filter. my friends think that the carb is...
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