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Thread: TRX450R Valve Adjustment HOW-TO

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  1. #1
    Join Date
    Jan 2009
    Location
    The evergreen state
    Posts
    299
    bump
    07' trx450r-lexx mxe pipe, hotcam stage 2,cdi, jetted with k&n
    07' ltz400- yosi pipe,jetted, k&n,cdi
    86' lt250r quadracer-fmf pipe&silencer
    08' silverado
    75'nova SS 350/4speed
    IMCA open wheel modified- 360ci,balanced&blue printed,kieth black pop ups,2.05/1.60 vortec heads, 301* .526 lift comp cam,holley strip dominator, holley 750 double pumper

  2. #2
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,190
    Bumping this for others.
    My 2005 TRX450R - Specs, Mods, Dyno Testing, Tech Articles, Pics, Vids, & more.
    | '04 Honda TRX450R - Racers Edge, AZ 545cc "Me Gusta!" Flat Drag Bike |
    | '05 Honda TRX450R - Wicked Motors, MD 450cc "PunisheR" Play Drag Bike |

  3. #3
    Join Date
    Nov 2010
    Posts
    1,657
    yup, great write up! Sometimes it's scary going in to do this for the first time, but if you follow this guide it's a no brainer. Once you do it one time you'll have the confidence to do it everytime. Decomp can be confusing, but the easiest method i find for it is to use the service manual to check it. use feelers and set the gap right where it should be.

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