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

Backfiring winder!

Discussion in 'SideWinder Trail Talk' started by PowderFalcon, Jan 13, 2020.


  1. PowderFalcon

    PowderFalcon Pinnin' it! VIP Member

    Messages:
    801
    Location:
    Drumbo, ON
    Country:
    Canada
    Snowmobile:
    2019 Sidewinder SRX
    Hey guys,

    Has any of you experienced this??

    Cruising along on the trail, Steady speed, just shredding white nectar, hangin off the side rippin corners... start coasting to the stop sign with a big smile on my face as look back and have completely lost my buddy on his scooby doo, then ... POW!!! Big ole back fire!

    What the heck is that about?! Scared the bajesus out of my the first few times.

    It happens more often than not actually. Almost predictable after a good session of sendin’ it!

    Should I be worried? Or does it just my sled telling me I’m the frickin man and no other brand can hang with me!

    Anyone else experience this? Seriously tho. What’s up with that!
     
  2.  
  3. Pstn head

    Pstn head VIP Member VIP Member

    Messages:
    1,162
    Location:
    Ontario, Canada
    Possibly a leak in the equast ??? Broken or cracked pipe?
     
    yamamarc likes this.
  4. RAMSOMAIR

    RAMSOMAIR TY 4 Stroke Junkie

    Messages:
    654
    Location:
    Ontario, Canada
    ☝️
     
    Pstn head likes this.
  5. geez177

    geez177 Expert

    Messages:
    379
    Location:
    Batavia, NY
    Country:
    USA
    Snowmobile:
    2017 Arctic-Cat ZR 9k LXR
    2005 Yamaha RS Rage
    Are you tuned? If so it seems like tuned sleds do this from time to time.
     
  6. PowderFalcon

    PowderFalcon Pinnin' it! VIP Member

    Messages:
    801
    Location:
    Drumbo, ON
    Country:
    Canada
    Snowmobile:
    2019 Sidewinder SRX
    yes I am.

    time to time would be one thing. But mine does it often. Maybe 10 times if I’m riding all day
     
  7. Turboflash

    Turboflash VIP Member VIP Member

    Messages:
    640
    Location:
    Minneapolis
    Country:
    USA
    Snowmobile:
    '17 ZR9000 Ltd. PEFI Stg 4.
    Without seeing/hearing sled, seems like exhaust stream is rich with unburned fuel which then gets into exhaust pipe and muffler. When there is enough oxygen, boom, it explodes. Either your tune is too rich (lots of unburned fuel in exhaust system), or as Ramsoair and Pstnhead said, I'd be suspicious of a crack or loose exhaust connection (both of which allow air to enter the exhaust system). Need to check exhaust manifold nuts on cylinder head, the clamps that connect exhaust manifold to middle pipe, and the clamp that connects middle pipe to turbo. I've heard of a few exhaust manifold cracks so check very carefully around the 3 runners where they join into the collector. Somehow, O2 is getting into exhaust system. IF there is no air, even unburned fuel will not light (or explode). Can you tell where the backfire is? Is in muffler, at muffler outlet, or inside exhaust system?
     
  8. Rtbo

    Rtbo Expert

    Messages:
    232
    Location:
    N Syracuse
    Country:
    USA
    Snowmobile:
    17 sidewinder ltx le
    My hose clamp came loose from mid pipe to turbo and it would backfire but I also heard it get louder and black soot all around the leak
     
  9. jonlafon1

    jonlafon1 TY 4 Stroke God

    Messages:
    1,501
    Location:
    Mount Morris, WI
    Country:
    USA
    Snowmobile:
    Sidewinder LTX-SE
    NOT
     
    Turboflash likes this.
  10. JayM

    JayM Expert

    Messages:
    423
    Location:
    Pickering, ON
    Country:
    Canada
    Snowmobile:
    2017 Sidewinder R-TX SE
    I posted on FB too but mine does this exact thing, maybe while I have zero snow locally I will check the crossover again. I checked it this fall but I may have missed something.
     
  11. jaydaniels

    jaydaniels TY 4 Stroke Junkie

    Messages:
    571
    Location:
    Amherst NS Canada
    I have a precision efi 30hp tune and mine does this exact thing. Seemed to start after the tune was installed.
     
  12. PowderFalcon

    PowderFalcon Pinnin' it! VIP Member

    Messages:
    801
    Location:
    Drumbo, ON
    Country:
    Canada
    Snowmobile:
    2019 Sidewinder SRX
    thanks, i will check those items you mentioned.

    I haven't isolated where its coming from. I can tell you the lower panel is very black and i clean it with a magic eraser every few rides. so i guess that would be telling of unburned fuel
     
  13. 74Nitro

    74Nitro VIP Member VIP Member

    Messages:
    1,873
    Location:
    Dublin Ontario
    Country:
    Canada
    Snowmobile:
    2019 Sidewinder LTX
    One way to avoid having this happen is to hold the throttle slightly open while decelerating.
     
    PowderFalcon likes this.
  14. Crazy Canuk

    Crazy Canuk Pro

    Messages:
    177
    Location:
    Northern Ontario
    Maybe want to try some new fuel as well. My 1000 Outlander backfires once in a while after a good run and letting the throttle go to decelerate. Recently added premium to it and the problem seems to have gone away. Have checked for exhaust leaks and found none. Just food for thought.
     
  15. PowderFalcon

    PowderFalcon Pinnin' it! VIP Member

    Messages:
    801
    Location:
    Drumbo, ON
    Country:
    Canada
    Snowmobile:
    2019 Sidewinder SRX
    I was thinking fuel too. Ran 3 tanks of fresh through it now. Maybe I’ll add some Lucas to the next tank
     
  16. Mototown

    Mototown TY 4 Stroke Junkie

    Messages:
    554
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    Apex 40 th
    Mine does it to when riding aggressively or fast trails . Did it in New Brunswick & Hearst to me , it wasn’t the exhaust . It’s must be gas , everytime I fill up at Esso in Hamilton never have a problem with it .
     
    PowderFalcon likes this.

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