1. Lets Play Games now at YamahaT150 ARCADE
    Click Here to play
  2. If your have CLUB EVENTS/RIDE & would like to announce it here,
    Message traxxas-modifier about it :-)
    Dismiss Notice

Help! Valve Problem

Discussion in 'Modification' started by fLip, Sep 18, 2016.

  1. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    :help:mga paps, ask lng bkt kya pudpod n kgd valve ko 2weeks lng.. standard size faito, hi speed valve spring, 5.8 lift ng cams.
    tia.:thumbsup:
     
  2.  
  3. Dropper

    Dropper Veteran

    Joined:
    Oct 8, 2013
    Messages:
    276
    Likes Received:
    90
    Trophy Points:
    146
    Location (city/province):
    Cordoba, Cebu
    Country:
    Philippines
    maybe your cam lift might too high :rolleyes:
     
    fLip likes this.
  4. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    5.8 sir
     
  5. snipermxmalayaklan

    snipermxmalayaklan Super Veteran

    Joined:
    Oct 4, 2013
    Messages:
    426
    Likes Received:
    345
    Trophy Points:
    391
    Location (city/province):
    Aklan
    Country:
    Philippines
    based on my experience Sir, this could as well make your valve blunt fast. open carb, loose valve guide, not flat valve spring from end to end, not seated properly , too stiff V.S. that's just my observation Sir, lets wait for masters' help.
     
    fLip likes this.
  6. JapSpeed

    JapSpeed Super Veteran

    Joined:
    Dec 23, 2013
    Messages:
    2,036
    Likes Received:
    951
    Trophy Points:
    441
    Location (city/province):
    Bacolod City
    Country:
    Philippines
    hi speed valve springs are so stiff. install shim and retainer for your valve tip protection.. based on my experience too..
     
    jangbest and fLip like this.
  7. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    thanks mga paps, planing to install shims:)
     
    JapSpeed likes this.
  8. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    one more thing mga papz, can i use the stock vs for intake only instead of hi speed vs.. will it make any harm on my head?
    thanks again in advance
     
  9. snipermxmalayaklan

    snipermxmalayaklan Super Veteran

    Joined:
    Oct 4, 2013
    Messages:
    426
    Likes Received:
    345
    Trophy Points:
    391
    Location (city/province):
    Aklan
    Country:
    Philippines
    are
    are you on RCDI Sir? if yes, it's a must to put some stiffer valve there. in/out.
     
    JapSpeed likes this.
  10. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    QUOTE="snipermxmalayaklan, post: 654587, member: 17696"]are

    are you on RCDI Sir? if yes, it's a must to put some stiffer valve there. in/out.[/QUOTE]
    m
    not yet sir
     
  11. snipermxmalayaklan

    snipermxmalayaklan Super Veteran

    Joined:
    Oct 4, 2013
    Messages:
    426
    Likes Received:
    345
    Trophy Points:
    391
    Location (city/province):
    Aklan
    Country:
    Philippines
    m
    not yet sir[/QUOTE]
    if not yet Sir, then there is no need to replace to stiffer valve spring since as far a i know the only purpose or RCDI is to increase your RPM limit. With stock CDI your RPM will be restricted to a safe capability of your valve spring.
     
    fLip and JapSpeed like this.
  12. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    if not yet Sir, then there is no need to replace to stiffer valve spring since as far a i know the only purpose or RCDI is to increase your RPM limit. With stock CDI your RPM will be restricted to a safe capability of your valve spring.[/QUOTE]

    thanks sir :)
     
  13. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
    change stock tapet screw to Honda cb110 or Honda wave dash (same parts number) tapet screw. more surface area for your tapet screw to contact valve tip. design similar to mx king
     
    jangbest, fLip and JapSpeed like this.
  14. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
  15. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
    [​IMG]
    that is the tapet screw of the Honda cb110 inserted from below on the stock rocker arm of sniper. more surface area to contact valve tip
     
  16. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    thank you po sir
    UOTE="docgabby, post: 654673, member: 393"][​IMG]
    that is the tapet screw of the Honda cb110 inserted from below on the stock rocker arm of sniper. more surface area to contact valve tip[/QUOTE]
     
  17. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
    [/QUOTE]

    the tapet screw of the Honda cb110 is easier to find and much cheaper. compared to the mx king which takes at least a minimum of three months to order. I think Yamaha made changes to tapet screw design with mx king since it was becoming a common problem of the old design..mushroom valve tip
     
    fLip likes this.
  18. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
    I have used shims from the Suzuki raider and even used their valve retainer. but I had incidences were the shim jumped out (you have to be meticulous with your valve clearance). you have to sand the shim to its thinnest so its deep within the retainer. the valve tip to valve lock distance is much wider for the sniper. be cautious of this if you want to go shim. :thumbsup::coffee::eek:
     
    fLip and JapSpeed like this.
  19. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    thank you sir
     
  20. docgabby

    docgabby Super Veteran

    Joined:
    Jun 11, 2007
    Messages:
    949
    Likes Received:
    459
    Trophy Points:
    391
    Location (city/province):
    legaspi city
    Country:
    Philippines
    based on the parts catalog of the mx king they have changed to a wider tip tapet
    [​IMG]
     
  21. fLip

    fLip New Member

    Joined:
    Jan 11, 2015
    Messages:
    24
    Likes Received:
    9
    Trophy Points:
    3
    Location (city/province):
    cavite
    Country:
    Philippines
    is it possible to use mx king taet screw?

     

Share This Page