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2016 Viper Stall on acceleration

Discussion in 'SR Viper Talk' started by ThoobHertz, Feb 22, 2021.


  1. ThoobHertz

    ThoobHertz Newbie

    Messages:
    5
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    2016 Viper LTX SE
    Good afternoon everyone, long time follower of this forum, decided to sign up as I'm having some problems with my Viper that I can't seem to find a solution for.
    2016 LTX SE
    I'm hoping somebody can maybe help out. I just bought this Viper about 10 months ago and I have been driving it since December with no issues. So there was one incident where I rolled over on the right side, just enough for the oil light to come on. I flipped it up on its side, and a buddy of mine was with me, and he reset the oil light, started back up and off we went. I've since been driving it for a month and have probably put on 1000 km so far since then. Yesterday morning we were out on the trails, and on some of the corners it sounded like the engine was going to stall but as I gave it some throttle, it got going again. This was probably about 50 km into the trip. When we came to an intersection, it died on me. I was able to start it, with no problem, and it would idle no problem, but as soon as I went to take off and gave it some gas, it would stall. Ultimately I ended up getting towed back home and now it's in my trailer the next day and it's still doing it. I checked my oil level and it was under the normal reading on the dipstick, so I added some to bring it back up. started the sled let it warm up it was running no problem but as soon as I tried to give it gas, it stalled again. I took the belt off, and started it up. I cranked the throttle hard, it's spotted and then went. Not physically moved, cause the belt is off but you know what I mean. So I let off the throttle and it was still idling, but as soon as I tried to give a gas lightly, it's stalled again. very frustrating and I have no idea why it's doing this and there's no warning lights on the dash. The sled only has about 3,000 km on it but no more warranty as it's 5 years old.
    Link to the video here.
     
  2.  

  3. Norse

    Norse Extreme

    Messages:
    105
    Location:
    Sápmi
    Country:
    Norway
    Snowmobile:
    2013 Arctic Cat M1100 HCR 162"
    Boondocker turbo (sold)

    2016 Yamaha SR Viper MTX LE 162"
    Throttle position sensor? Had that issue with my M1100 previously. Does it click when you move the throttle lever? Or maybe exhaust leak, spark plugs?
     
  4. ThoobHertz

    ThoobHertz Newbie

    Messages:
    5
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    2016 Viper LTX SE
    No clicking moving the throttle. I haven't checked the spark plugs, but I'm thinking if it was one of them I would hear hesitation while idling no?
    I'm reading the thread right now on the oil separator, so I'm going to try to take a look at that. I'm just having a problem right now finding a tool that fits behind the exhaust pipe to get the cover off over the separator. I'm not sure what other kind of sensors are on this sled as it is new to me. I've always had older two-stroke sleds
     
  5. mbarryracing

    mbarryracing TY 4 Stroke God

    Messages:
    1,850
    Location:
    Springville NY
    Country:
    USA
    Snowmobile:
    2006 Yamaha Attak Turbo
    2015 SR Viper RTX-DX
    1996 Vmax 600XT
    I agree, that's where I'd start. Also check throttle cable slack to make sure there isn't something wacky with the TORS.
    Doesn't sound like anything related to oil level, but maybe you got some snow packed in somewhere or tweaked something out of adjustment when you stuck it in the ding weeds... Make sure the air intake for the air box isn't packed closed off with ice.
     
    Last edited: Feb 22, 2021
    cannondale27 likes this.
  6. Yamajon1

    Yamajon1 VIP Member VIP Member

    Messages:
    383
    Location:
    Oshkosh Wisconsin
    Country:
    USA
    Snowmobile:
    2016 SR Viper RTX DX
    Former Yamaha sleds:
    2004 Venture 600 2002 SX Viper 700
    1997 Vmax 600 SX 1994 Vmax 600 1989 Exciter
    1986 Vmax 540 1986 Phaser 1981 SRX 440
    X2 what mbarryracing said. My 16 just needed a cable adjustment to cure this.
     
    cannondale27 likes this.
  7. ThoobHertz

    ThoobHertz Newbie

    Messages:
    5
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    2016 Viper LTX SE
    I believe you guys are 100% correct. It's finicky when I'm playing with the cable.

     
    cannondale27 likes this.
  8. ThoobHertz

    ThoobHertz Newbie

    Messages:
    5
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    2016 Viper LTX SE
    So it looks like what happened, was the last time I took the throttle block apart, I put it back together and managed to pinch one of the wires attached to the kill switch. I've since then readjusted all the wires inside the block and put it back together, and now the sled is running fine. Will be looking into it further.
     
    Last edited: Feb 27, 2021 at 10:34 AM
    Norse and ishpeming fan like this.
  9. Lee Rivers 1

    Lee Rivers 1 Veteran

    Messages:
    31
    Country:
    Canada
    Snowmobile:
    2009 Nytro RTX
    Had a similar problem with my 2016 LTX after tipping over on the right side. Took it to the dealer as I could not get it to run properly. He Played with the thumb throttle and just reset it on the cable at the throttle. Took him about 5 seconds...perfect after that.
     
  10. TPAY243

    TPAY243 Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    738
    Location:
    Northern Wis
    Country:
    USA
    Snowmobile:
    2020 Yamaha Sidewinder LTX SE
    TORS on these machines are very touchy your better to run the throttle cable a little on the lose side rather then having it to tight. If it's to tight it will cause all kinds of problems one being hard starting. This will also happen out of the blue for no reason it's like the throttle cable tightens up over time.
     
  11. ThoobHertz

    ThoobHertz Newbie

    Messages:
    5
    Location:
    Ontario
    Country:
    Canada
    Snowmobile:
    2016 Viper LTX SE
    Funny you guys just mentioned that. I was at a buddies last night and that's what we determined was the issue. The TORS was definitely the issue. Adjusted the cable and all good. Thankfully it was a simple fix.
     
    Kkurz likes this.

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