Jump to content


  • Content Count

  • Joined

  • Last visited

About rzr900

  • Rank
    TT Newbie

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. rzr900

    Supersprox sprockets?

    Good sprockets run them on my 450 , trail ride and run harescrambles have 60hrs on set and still look great !
  2. rzr900


    Looking to add new 250x to collection, currently have 450f, will keep it , wanting pros and cons from owners, run harescrambles and trail ride .
  3. rzr900

    Flywheel weight and/or Rekluse?

    I have a 07 450 that I’ve set up for xc racing , run gytr flywheel & rekluse gearing is 13&50 , have a 51& 52 but like 50 best , bike does very well in everything I’ve ran so far
  4. Opinions on enduro engineering vs Cycra pro bends ?
  5. 2010 yz450 , wanting to add flywheel weight for better woods ridability, gearing is 13 & 51 , or would mapping b a better choice ?
  6. Is it recommended to change tensioner when changing cam chain ?
  7. Have a 07 yz 450, thinking about a new bike , like what I have , with some mods it’s a capable trail bike that I have had no problems with, wld a wr 450 or 450fx be worth the investment , pros & cons on either ?
  8. rzr900

    Valve shimming

    Marks are spot on , camchain looks good &feels good , cam loves show no sign of wear , starts good hot or cold , only running issue is a hesitation at low part throttle , jetted , played with needle, & mixture , still same , unplugged tps & it’s gone , have raced & worked on bikes for many years just always been 2 strokes , definitely a learning curve on this thing , being cautious about it I guess
  9. 07 450f , first modern four stroke , checked valves , le -.19mm, re-.18 I know these need adjusted , intake l-r .11,.10,.12 , should I run them for awhile or adjust them also , going to check compression & do leakdown test for peace of mind , bike runs well , a very low hr bike , bike has bn parked for 5-6 yrs of its life , everything I’ve checked looks very good so far , thanks for help & advice .