1. We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.
    Dismiss Notice

07 apex rpm's very low and stalls when warm on idle

Discussion in 'Apex General Talk' started by WinderFab, Jan 14, 2014.


  1. biffdotorg

    biffdotorg VIP Member VIP Member

    Messages:
    1,949
    Location:
    Pelican Rapids, MN
    Country:
    USA
    Snowmobile:
    Apex XTX and VIper LTX SE
    WEBSITE:
    www.biff.org
    Idle knob was my next guess too. But I was unsure how much was too much. So this is good advice at 1.5 to 2 turns.

    Mine will not stall if I come to a stop and feather the throttle just a bit. It's like it sets the idle and I can walk away from it just fine. If I roll to a stop, it will stall once it hits idle.

    If I come into a stop super fast and brake to a stop, locking the track, I have had that engine stall before I come to a stop! That may be something else though.

    All if this is while the engine is hot. But as the others say, it will start right back up, and idle fine. Or I can pull my little feather of the throttle trick, and get it to idle fine. I just cannot come off throttle and idle on it's own. Maybe that is some sort of TPS issue?
     
  2. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    There doesn't seem to be a part no. for the IAC assembly or the thermostatic devise in the end. Anyone have any incite?
     
  3. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    Just in-case anyone is wondering what is inside the IAC.
     

    Attached Files:

  4. tomanytoyz

    tomanytoyz Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    1,237
    Location:
    oakland co,mi
    Very nice nate007 ! so i had it half correct to the idle issue..i never think about going to the service manual which i do have.i try to do it the old way lol . i always start the sled up 1 a week throughout the year every year since i have owned it,i think this is why my sled runs sooo dang good! i hope he and others have this issue fixed with your help !
     
  5. WinderFab

    WinderFab VIP Member VIP Member

    Messages:
    1,466
    Location:
    Woodbridge, ON
    Country:
    Canada
    Snowmobile:
    2020 Sidewinder Ltx GT
    Nate007 thanks for your help, I'll give that a try and let you guys know how it goes, thanks again...
     
  6. vx700xtc

    vx700xtc Expert

    Messages:
    297
    Location:
    west cenrtal indiana
    so, what if you can not maintain idle for synch purpose?
     
  7. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    Well I just changed The IAC coolant end onto mine from a sled that is ok. Sled still idles down to 1,000 rpm and idle speed adjuster does nothing. Going riding tomorrow and will report back findings. Going to have to get a vac gauge and test.
     
  8. WinderFab

    WinderFab VIP Member VIP Member

    Messages:
    1,466
    Location:
    Woodbridge, ON
    Country:
    Canada
    Snowmobile:
    2020 Sidewinder Ltx GT
    Thanks TBay Sledhead for the update, please keep us posted if you find anything and I'll do the same,

    Will any vacuum tester work?
     
  9. 02xtreme

    02xtreme Pro

    Messages:
    148
    Location:
    Ontario Canada
    I tried a vac tester from Cdn Tire and the ID for the hose that attaches to the throttle body was a bit too big. I zip tied it but still couldn't get it tight enough cause when I turned on the sled the gauge would just bounces all over. I couldn't find a hose with a small enough ID to fit the 4 brass nipples on the throttle bodies so kinda gave up on doing this test. It was also analog so hard to read the exact reading which seems like it could be critical for this test.
     
  10. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    Well I went out riding today and the idle is 90% better but still not quite right. Twice it tried to stall on me earlier in the day. Last half of the day it never acted up at all. Ran the sled hard through 3' of powder, what a blast. If I could get hold of a brand new one I think I would have it licked. I guess I'll have to give Port Yammy a call and see if it is available seeing as I can't find a part no. in any fiche for this part.
     
  11. WinderFab

    WinderFab VIP Member VIP Member

    Messages:
    1,466
    Location:
    Woodbridge, ON
    Country:
    Canada
    Snowmobile:
    2020 Sidewinder Ltx GT
    Tbay Sledhead you said that you installed one from a good working sled but yours wanted to stall but than ran fine,

    If the sled it came off does not stall out on idle than why would yours want to stall out early in the day,

    I'm not doubting you just trying to figure out this problem that we are having,

    How bad was your sled before you did the swap? Mine will stall out every time once it's on idle for a few seconds,

    My riding partners apex which has a few more km than mine runs good, doesn't not have this problem but he will not make me switch parts , I don't blame him, don't touch what ant broke he tells me lol...

    Do you have any ideas why it wanted to stall but than ran fine?
    Do you think running it hard in powder has anything to do with it?
    Thanks
     
  12. WinderFab

    WinderFab VIP Member VIP Member

    Messages:
    1,466
    Location:
    Woodbridge, ON
    Country:
    Canada
    Snowmobile:
    2020 Sidewinder Ltx GT
    Tbay Sledhead I've been doing a lot of research on the IAC , IAC seems to be the problem when theres idling problems, a few guys also said that the carbs need to be synchronize, is that true? And did you do that to yours ?
     
  13. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    As to why the sled ran that way I don't know.

    Sled was stalling all the time the last couple of days.

    I don't think the powder running had anything to do with this issue. I've done that before with no issues.

    I've installed my part on the other sled and will probably run it later today.

    I've ruled out anything to do with the airbox temp sender as I've tried 2 different ones from sleds with no problems
     
  14. 02xtreme

    02xtreme Pro

    Messages:
    148
    Location:
    Ontario Canada
    U da man!! Keep reporting back!!
     
  15. TBay Sledhead

    TBay Sledhead VIP Member VIP Member

    Messages:
    1,127
    Location:
    Thunder Bay, Ontario.Ca
    Country:
    Canada
    Snowmobile:
    06 Attak
    01 SXR Long Track
    Never got to run the other sled today as I took the skid out to service it and noticed it needs a new track. So I don't think it will be run until I get that changed. My sled work just never seems to end.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice