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

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


  1. vipermike2002

    vipermike2002 Pro

    Messages:
    140
    Location:
    Northern, IL / Rhinelander, WI
    Country:
    USA
    Snowmobile:
    07 Attak
    Adjusting the CO to -10 fixed my issue. But on cold starts the idle will drop for about 30 seconds then goto normal about 10 seconds after I turn the key. Runs perfect when its warm. Sounds like a valve adjustment might be necessary.

    What does a valve adjustment cost at the dealer?
     
  2. tomanytoyz

    tomanytoyz Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    1,237
    Location:
    oakland co,mi
    Around here it’s $1000-1500 max to do the job at a dealer . Mine started this year with this low idle issue .. I adjusted my idle ( black knob ) almost 2 full turns when it’s was all warmed up at it went away ! Not 1 issue after . Cold start the idle is a little higher but that ok . No more low idle stall grumble .
     
  3. Nyu22

    Nyu22 Newbie

    Messages:
    2
    Location:
    Vermillion
    Country:
    Canada
    Snowmobile:
    83 vmax 84phazer 2x1981 scorpion sidewinders 3x1973 scorpion super stingers
    1974 scorpion super stinger
     
  4. Nyu22

    Nyu22 Newbie

    Messages:
    2
    Location:
    Vermillion
    Country:
    Canada
    Snowmobile:
    83 vmax 84phazer 2x1981 scorpion sidewinders 3x1973 scorpion super stingers
    1974 scorpion super stinger
    Has anybody tried turning the throttle blade stop screw... NOT IAC adjuster.... up a quarter or half turn. With hi mileage how many times has that steel on steel been hit maybe wearing enough to allow throttle blades to close a little more. Also throttle blade shaft wear may be a factor.
     
  5. tomanytoyz

    tomanytoyz Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    1,237
    Location:
    oakland co,mi
    My intake valves were tight , had them all checked and corrected . Much better but still a little low for my liking , I will look at what your talking about and see what it does , or leave it alone , don’t want to create another issue ..
     
  6. 4strokerpms

    4strokerpms Newbie

    Messages:
    22
    Location:
    The Pas, Mantoba
    2006 apex with 12000 miles on it. Was almost impossible to start when cold and would stall when warm. Adjusted valves which were way off and sled run like new. Thanks for the write up. One note timing was a pain in the #*$&@ to get right after putting camshafts back on . Would probably try the zip tie the chain to the timing gear next time.
     
  7. wkeggenhoff

    wkeggenhoff Expert

    Messages:
    314
    Location:
    Ajax,Onatrio, Canada
    Country:
    Canada
    Snowmobile:
    2006 Yamaha Apex RTX
    mine had these issues. When oil pump chain came off last year at 28,000 km's and dealer set valves. they were tight. Issues are gone now
     
  8. Andbro1526

    Andbro1526 Newbie

    Messages:
    6
    Location:
    Alma
    Country:
    Canada
    Snowmobile:
    Venture GT
    Hi,
    I have the same problem like you with the idle. Before to stall do you have remark, the only 3 cylinders working. Just after stalling, I restart and now I came back with 4 cylinders. Like if an ignition coil has not enough voltage for a nice spark.
     
  9. Shperax

    Shperax Newbie

    Messages:
    6
    Location:
    Temiskaming Shores
    Country:
    Canada
    Snowmobile:
    1999 SX 500 / 2006 Attak
    Mine would idle at 800-900 after getting fully warm and occasionally stall. I threw 2 cans of seafoam in a full tank and it now idles at 1100 warm and never stalls. I believe it was some gunk build up in the throttle body that messed with air flow. Seafoam can be added up to 50/50 for extreme cleaning on injectors so go to town if your gonna try it. People need to be more liberal with it.
     

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