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New Ecu flash for Yamaha Viper/Arctic cats 7000 w/POLL

Discussion in 'SR Viper Talk' started by Fixit156, Dec 7, 2018.


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Your experience with the December 2018 Viper ecu update

  1. Cold weather starting improved

    82.5%
  2. Cold weather starting is worse

    8.8%
  3. Warm starts improved

    52.6%
  4. Warm starts are worse

    14.0%
  5. Sled seems more responsive

    63.2%
  6. Sled seems less responsive

    0 vote(s)
    0.0%
  7. Would recommend update overall

    64.9%
  8. Would not recommend update overall

    14.0%
  9. Backfires improved

    38.6%
  10. Backfires not improved

    5.3%
Multiple votes are allowed.
  1. Fixit156

    Fixit156 Extreme

    Messages:
    67
    Location:
    Holliston MA
    Country:
    USA
    Snowmobile:
    2017 Yamaha Viper RTX DX
    980839A7-2723-4686-AC43-4A6942743D46.png Saw this on Facebook
     
    Upton44, Silverado43 and cannondale27 like this.
  2.  
  3. 09nytro

    09nytro TY 4 Stroke God

    Messages:
    3,466
    Location:
    grayling,Michigan
    I haven’t heard anything from Yamaha about one
     
  4. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    18,491
    Location:
    Manitowoc,WI
    Same here. I believe Yamaha released it about 2 weeks after Cat last time.
     
  5. Kkurz

    Kkurz Expert

    Messages:
    294
    Location:
    Peterborough On.
    Country:
    Canada
    Snowmobile:
    2014 XF7000 Sno-Pro Limited
    (Yamaha powered)
    I'm taking mine in this week to have it done. I talked to the dealer today.
     
    cannondale27 likes this.
  6. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    18,491
    Location:
    Manitowoc,WI
    Please let us know results. Excited about this one!
     
  7. srvfan

    srvfan Expert

    Messages:
    414
    any details about it ? like what if your airbox is modded , leaner map might not be a good thing
     
  8. saskieXTX

    saskieXTX Veteran

    Messages:
    34
    Location:
    Saskatoon
    Country:
    Canada
    Snowmobile:
    2015 Yamaha SR-Viper XTX
    1997 Yamaha Vmax XTC 600
    Yamaha has always ran their sleds on the rich side. They prefer reliable to all out power. Wouldn't worry about it.
     
  9. yamadoo

    yamadoo Yamadoo is a snowmobile ' aholic'. Lifetime VIP Member VIP Member

    Messages:
    3,122
    Location:
    SE MN work North shore Superior play
    Country:
    USA
    Snowmobile:
    15 Viper STX DX red/white
    13 Apex XTX 45 anniversary RED/WHITE/BLACK
    10 Vector LTX Blue
    11 Venture Gt
    86 SnoScoot(2) for grand kids
    My dealer was aware of the Cat change was going to check on Yamaha just yesterday
    May be worth being slow to pickup the sled until Yamahas latest flash
     
  10. Harvest1121

    Harvest1121 Extreme

    Messages:
    62
    I will wait and see if it makes them start better this time. No reason to rush and get it
     
  11. hibshman25

    hibshman25 Vendor Vendor VIP Member

    Messages:
    2,298
    Location:
    Lebanon, PA 17042
    Country:
    USA
    Snowmobile:
    2017 sidewinder ltx dx
    2018 snoscoot
    I was told Yamaha had an engineer over from Japan that was solely dedicated to fixing the ECU! Time will tell whether they did finally get it right.
     
    Pstn head, rebmo, Snoden and 3 others like this.
  12. x2thez

    x2thez Expert

    Messages:
    213
    Location:
    Buffalo, NY
    Country:
    USA
    Snowmobile:
    2014 Yamaha Viper LTX
    2009 Yamaha Vector LTX
    1987 Yamaha Bravo
    So my sled is currently at the dealer, they are dealing with the chaincase leak under warranty. I asked them to check to ensure the ECU was on the latest software and as of this morning they said it is, which is a flash from Sept of 2016. Anyone have any details on this latest flash?
     
  13. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    18,491
    Location:
    Manitowoc,WI
    Yamaha hasn’t released it yet.
     
  14. Snoden

    Snoden RIP-Logan-Never forgotten! Lifetime VIP Member VIP Member

    Messages:
    261
    Location:
    Ohio
    Country:
    USA
    Snowmobile:
    18 Winder LTX 50th
    16 SR Viper RTX (red)
    02 SX Viper ER (red)
    97 SX Vmax 600 (red)
    I like the sound of this statement!
     
    CooperT and cannondale27 like this.
  15. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    18,491
    Location:
    Manitowoc,WI
    Me too!
     
    Snoden likes this.
  16. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    18,491
    Location:
    Manitowoc,WI
    I am hoping that the changes they make will allow me to run that Sidewinder setup. Only theory but I think they made the Ecu too sensitive to crank input in attempt to prevent the dreaded Kickback. That sensitivity wont let the Winder pickup run the sled more than 20 sec. Just a dream for all I know. Hoping they dumb it down a bit! Really other than the 2 start attempts sometimes,Backfire of all backfires and the random stall the tune was real good as far as run quality.
     
    Dinner likes this.

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