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  1. Engine/EFI/Drivetrain
    I upgraded a trx400ex engine to the highest possible power output without a 460 kit. A complete Wiseco bottom end, 440 13:1 Wiseco top end, Advanced aluminum sleeve, ported polished head, Kibblewhite valve set with +1mm springs, stage 3 Hotcams cam, trx450r carb, 105 octane fuel, a CDI with the...
  2. Engine/EFI/Drivetrain
    I was recently given a recon from a friend who thought the rear end was bad. Well it ended up being the centrifugal clutch was bad so I replaced it along with the one way bearing and primary clutch packs. I adjusted the primary like it shows in the manual but when shifted into gear it acts like...
  3. TRX General Discussions
    I’ll start with the facts and then add what I believe to be the problem. Quad was running perfect yesterday. Went to start it today, won’t start. Assumed it was a hard cold start, hooked the battery to a tender for while. Still won’t start. Rolled it around the yard in neutral to bring it...
1-3 of 3 Results