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#trx450 #trx450er #trx450r06 05trx450r 06 frame 2004 2005 trx 450r 2006 2006 trx450r 2014 trx 450r 250r 400ex 450r 500 big bore a arms axle bars battery bog bogging out build cam carb carb issue carburetor carrier bearing cdi clutch crankshaft crf450r cylinder dasa dirtwheels drag drag bike drag racing drivetrain elka engine exhaust fcr frame frontsuspension green wire mod grinding head work help help needed honda hot start hotcam intake jets jetting lights linkage long travel mixing fuel mods motor nerf no start noise nospark oil paddles piston pro radiator rearsuspension rebuild revalve rod sand drags shocks sparkissues starter starter clutch suspension tiexieratech timing engine cams valve trail transmission troubleshooting trx trx 450er 2006 trx 450er 2008 trx06 trx450carbmods trx450chassis trx450er trx450r trx450r04 trx450throttle upgrade valve valve spec valves wontidle wontstart
  1. Engine
    This is my first post here. Just acquired a 2007 trx450er. I put a new wiseco oem spec piston and rings in it to start. ( got it non running). Used the manual. Valves to spec, timing on. Checked everything more than once. It is bone stock. Stock exhaust. Uni filter. Air box lid on. Also rebuilt...
    cold start decomp hard start hot start valve spec
  2. Engine
    My exhaust valve stem measurements are barely in spec, but not at the service limit. I was wondering if I should replace them or just run them for another season. Exhaust valve stem spec: mm(in) 4.965-4.980(0.1955-0.1961) Service limit: 4.96 Current specs: Left exhaust: 4.966 Right exhaust...
    #trx450er question valve valve spec
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