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  1. Engine Tech FAQ
    Hi, I just installed a stage 1 dynojet kit in my 04 trx. I put the clip position at 3 and 48 pilot and 112 main, also the main air jet blockoff. But I'm having issues... black smoke when revving, also bogs when snaping the throttle, and pops A LOT. before I put the kit in my bike it would pop...
  2. Engine
    so my buddy just got a 05 450r with no engine mods to my knowledge other than a stage 2 hot cam and a full sparks pipe. it’s been running pretty good until today he was riding it and it died all of a sudden and made a kind of metal on metal grinding noise. it will still start and run but keeps...
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