Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
  1. #1

    2016 RXPX 300 rough idle

    Just picked up a new 300 and i noticed that after letting it idle for a min or so it get rough and vibrates a lot. give it a bleep of gas and it smooths out for a little then back to rough idle. just wondering if its common.


  2. #2

    Join Date
    Apr 2012
    Location
    Troy, MO
    Posts
    501
    +1
    70
    Quote Originally Posted by 2011gti View Post
    Just picked up a new 300 and i noticed that after letting it idle for a min or so it get rough and vibrates a lot. give it a bleep of gas and it smooths out for a little then back to rough idle. just wondering if its common.
    I feel like it's just the nature of the beast...

  3. #3

    Join Date
    Apr 2014
    Location
    Phoenix az
    Posts
    84
    +1
    14
    Mine did the same thing until I got some hours on it. Once it is broken and you should be able to let it idle for a long period time it will be OK

  4. #4
    Quote Originally Posted by Jwall View Post
    Quote Originally Posted by 2011gti View Post
    Just picked up a new 300 and i noticed that after letting it idle for a min or so it get rough and vibrates a lot. give it a bleep of gas and it smooths out for a little then back to rough idle. just wondering if its common.
    I feel like it's just the nature of the beast...
    yeah wasnt bad enough to call the dealership or anything was just wondering, and yes its a beast at 2hrs it opened up a lot

  5. #5

    Join Date
    Sep 2015
    Location
    Manitoba
    Posts
    277
    +1
    29
    See my post on this. On two occasions in 20 hours, mine has started smoothly then started idling very rough - like it was missing on a cylinder. I shut it off, pulled the key, pressed start plugged the key back in and restarted it. The problem was gone. Not sure if that is what you are experiencing, but if it is, try restarting it to see if that resolves it?

  6. #6

    Join Date
    May 2010
    Location
    Jax,FL
    Posts
    4,096
    +1
    834
    Quote Originally Posted by AZRIVERBOY View Post
    Mine did the same thing until I got some hours on it. Once it is broken and you should be able to let it idle for a long period time it will be OK
    same for me as well. I'd change the plugs around 20ish hours as well. I waited till 65 and my ski ran smoother...should've done it earlier. When I say smoother less vibration in the trigger at full throttle. My hand tends to get numb from the smallest vibrations...changing the plugs helped a lot.

  7. #7
    Mpeavler's Avatar
    Join Date
    Dec 2005
    Location
    Anderson, Indiana
    Posts
    5,259
    +1
    185
    Read bobs thread .. It's the transition from cold to normal map in ecu . BRP is not going to write an ecu fix unless enough alert them. Between both my 300's it's happened about 3 total times in almost 40 hours. Notice watch on engine temp display it happens around 160F engine temp.

  8. #8
    ph2ocraft's Avatar
    Join Date
    Apr 2006
    Location
    Campbell, Ca.
    Posts
    14,164
    +1
    116
    I complained about this in December when I bought my ski, it was never taken care of until the head bolt/ecu update was performed. Mine would do it as soon as I started the engine and would proceed underway. As a matter of fact, it'd do it on the trailer.
    Hot or cold it didn't matter, any prolonged idle would make it feel like it dropped a cylinder.
    Not really sure what ecu update was done at that point but it disappeared after the update.

  9. #9

    Join Date
    Sep 2015
    Location
    Manitoba
    Posts
    277
    +1
    29
    Try shutting it off, pulling the key and restarting. On mine that cures the problem immediately. I've only experienced it 3 times in 21 hours

  10. #10
    Mpeavler's Avatar
    Join Date
    Dec 2005
    Location
    Anderson, Indiana
    Posts
    5,259
    +1
    185
    Yep that's the fix as the next start the ecu realizes that the engine is warm and goes right to the right map

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. New 2016 RXPX 300 owner
    By miamifan11 in forum 4-Tec Performance
    Replies: 9
    Last Post: 04-28-2016, 09:05 AM
  2. Need help 2016 rxpx 300 where does this rubber grommet go
    By marcroberts in forum Sea Doo Open Discussion
    Replies: 20
    Last Post: 03-24-2016, 08:13 AM
  3. 2016 RXPX 300 Acceleration #s
    By DinoMite in forum 4-Tec Performance
    Replies: 106
    Last Post: 02-08-2016, 09:52 PM
  4. 2016 RXPX 300 What to expect Reflashed?
    By Dicedrop25 in forum 4-Tec Performance
    Replies: 10
    Last Post: 11-21-2015, 11:22 AM
  5. Trade 2014 RXPX 260 for 2016 RXPX 300???
    By MikeR397 in forum 4-Tec Performance
    Replies: 19
    Last Post: 09-29-2015, 09:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •