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  1. Raptor 660 Maintenance
    Hello everyone, I have a 2005 raptor 660r HMF slip on exhaust and a k/n air intake with spacer plate and no lid. I am having a bogging/backfire issue at mid throttle and then it dies idles fine and can ride fine at WOT carb main jet sized are 175L 180R I am unsure about other jet sizes and what...
  2. General 660 Discussion
    Hey everyone, weird frustrating issue I've been chasing for weeks. 2005 660r. I started the bike up to prep for desert season, new gas, charged the battery, cleaned air filter, oil, etc. It ran great, fired right up and rode like it did when I put it away. (Yes I drained the carb before...
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