Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 33

Thread: TRX450R Valve Adjustment HOW-TO

  1. #21
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,189
    Thanks for the kind words...

    And yes....

    In my bike, both the Hot Cams Stage 2, and Stage 3 have ticked much louder than a stock cam. As long as your clearances are on, your golden.
    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 |

  2. #22
    Join Date
    Apr 2006
    Location
    NJ
    Posts
    2,719
    Found an error in the guild tonight while I was installing my 02 CRF cam.

    Nothing major.

    In step 7 it says:

    "Set the engine to TOP DEAD CENTER (TDC) by completing the following tasks: Remove the Crankshaft Hole Cap (10mm allen wrench) on the bottom right side of the engine (near the transmission fluid check hole). Inside the crankshaft hole, use a 10mm allen wrench to rotate the crank manually to line up the timing marks on the sprocket and case (shown in the first picture below circled in GREEN)."
    To turn the crank shaft, you need to use an 8MM allen wrench, not a 10MM.
    10MM is correct for the cap still though.

    Your guild was super helpful tho, thanks =)
    05 450r
    Motowoz LT F&R / SMC +3 / Elka Pro Dual Link / RPM / Flexx / Rath / Douglas
    DRG Head / Ferrea +1x4 / CP 12:1 / 05 HRC Cam / HR +3 Balanced&Welded / DRG 43.5 FCR / DASA Classic

  3. #23
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,189
    Originally posted by d3ktrix
    Found an error in the guild tonight while I was installing my 02 CRF cam.

    Nothing major.

    In step 7 it says:



    To turn the crank shaft, you need to use an 8MM allen wrench, not a 10MM.
    10MM is correct for the cap still though.

    Your guild was super helpful tho, thanks =)
    Thank you, I will change that ASAP!
    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 |

  4. #24
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,189
    Updated it today.
    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 |

  5. #25
    Join Date
    Oct 2006
    Location
    WI
    Posts
    130
    Very nicely done!!! Looks good

  6. #26
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,189
    Originally posted by redrider03
    Very nicely done!!! Looks good
    Thanks!
    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 |

  7. #27
    Join Date
    Dec 2005
    Posts
    24

    valve adjustment questions

    Hello, i want to say that this is an excellent how to and very well done. I have a question about shims. I have an 06 450R and i will be installing the HRC soon but my questions are just assuming keeping everything stock. When it comes to adjusting the valves, are there no screw adjustments? The full adjusting is done through shim replacement only? How do the shims get out of adjustment? Is that just through the natural wearing of them? Assuming keeping the same CAM, how would you ever need to add a smaller shim if this is the case. It would seem the adjustment would always be adding the exact shim the bike came with or maybe slightly bigger to make up for another part wearing but how could you ever put a smaller one in? Also, i didnt see where you mention adjusting the decompressor clearance after the valve adjustment. I do understand this is done by an adjustment screw and the manual says to always do this after a valve adjustment or inspection. What is your take on this? Thanks again for such an informative how to.

  8. #28
    Join Date
    Jul 2008
    Posts
    11
    Originally posted by trx450jason
    i would say go for it.. its really easy to check the valves the only hard part is if you have to actually adjust them. but just to check them all you have to do is remove about 10 bolts
    What do you do if you are just checking clearances? which 10 bolts?

  9. #29
    Join Date
    Jun 2006
    Location
    Shen. Valley, VA
    Posts
    1,189
    Originally posted by wildheer
    Hello, i want to say that this is an excellent how to and very well done. I have a question about shims. I have an 06 450R and i will be installing the HRC soon but my questions are just assuming keeping everything stock. When it comes to adjusting the valves, are there no screw adjustments? The full adjusting is done through shim replacement only? How do the shims get out of adjustment? Is that just through the natural wearing of them? Assuming keeping the same CAM, how would you ever need to add a smaller shim if this is the case. It would seem the adjustment would always be adding the exact shim the bike came with or maybe slightly bigger to make up for another part wearing but how could you ever put a smaller one in? Also, i didnt see where you mention adjusting the decompressor clearance after the valve adjustment. I do understand this is done by an adjustment screw and the manual says to always do this after a valve adjustment or inspection. What is your take on this? Thanks again for such an informative how to.
    The valve seats will wear over time/use and require the shim adjustments...they are a normal wear and tear item. You can certainly minimize the amount you will have to adjust the valves by using high quality valves, seats, guides, and springs as well as using a cam which is easy on the valve train and doing routine oil changes and air filter cleanings.

    The decompressor adjustment is something I didn't want to include in the how-to because I don't feel its all that necessary. Others may disagree with me, but I've never had to adjust mine. In addition to that, there are varying ways to check the decompressor arm adjustment to...whether it be with a compression gauge or a simple feeler gauge test. I believe there is also a big difference as to what year bikes like what kind of decompressor adjustment...the kickers vary from the electric starts. I really didn't want to get into all that. Just follow what your manual or engine builder recommends.

    Originally posted by golfer2000
    What do you do if you are just checking clearances? which 10 bolts?
    4 bolts - front plastic to gas tank/frame
    2 bolts - gas tank to frame
    4 bolts - valve cover

    VOILA!
    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 |

  10. #30
    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

Page 3 of 4 FirstFirst 1234 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •