Page 1 of 5 123 ... LastLast
Results 1 to 10 of 47

Thread: Emm repair

  1. #1
    retro's Avatar
    Join Date
    Jun 2009
    Location
    Annapolis
    Posts
    496
    +1
    2

    Thumbs up Emm repair

    Just got my emm rebuilt from fichtemmrepair for my 04 genesis. There was an option to upgrade it to what the repair tech calls stage 2. It's supposse to offer better overall performace. What is actually done to the emm or programming I'm really not sure. I normally wouldnt pay for an upgrade but decided to give it a try since the repair from another emm last year is still going strong. I am very happy with how smooth and crisp the throttle response is. Ive had both carbed and injected skis and the carbed always was my go to ski because of how smooth the throttle reponse was. It's a nice feel to have a more carbed feel on my injected ski. I have put about 4 hours on the ski since the emm was repaired . Just giving my experience with the upgrade.


  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    39,201
    +1
    1,716
    My limited understanding is that the stage 2 increases fuel richness across the RPM range, possibly more so in mid-range RPM and below.

    I would be interested in your observations of piston wash patterns on the stage 2 engine compared to a stock Ficht engine.

    Has the top end sustained RPM increased much, or at all?

  3. #3
    ripcuda's Avatar
    Join Date
    May 2010
    Location
    Newman Lake, WA
    Posts
    2,479
    +1
    186
    How does the "stage 2" EMM compare to the regular EMM? Or is that what your saying... the "stage 2" EMM feels more smooth and crisp compared to the regular EMM (non stage 2)??

    Thanks for sharing.

    Cheers!

  4. #4
    retro's Avatar
    Join Date
    Jun 2009
    Location
    Annapolis
    Posts
    496
    +1
    2
    The stage 2 feels more smooth, more crisp overall better performance than the regular emm.

  5. #5
    retro's Avatar
    Join Date
    Jun 2009
    Location
    Annapolis
    Posts
    496
    +1
    2
    I will update findings on piston wash if see it. I really dont check too much on wash. Top end rpm is roughly the same. I think I might have gotten a few more rpm but nothing big. The biggest change is transition from across the entire rpm range.

  6. #6
    MSX 150 guy lives on Mr. GP1800's Avatar
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    17,414
    +1
    1,474
    I think he advances the timing somehow as well with the stage 2

  7. #7
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    39,201
    +1
    1,716
    Quote Originally Posted by Mr. Matrix View Post
    I think he advances the timing somehow as well with the stage 2
    Is there an impact on recommended fuel octane?

  8. #8

    Join Date
    Jun 2011
    Location
    Hermantown, MN
    Posts
    84
    +1
    2
    Quote Originally Posted by K447 View Post
    Quote Originally Posted by Mr. Matrix View Post
    I think he advances the timing somehow as well with the stage 2
    Is there an impact on recommended fuel octane?
    I had 2 of my EMM's repaired by the same place this month. The only reccomendations to were to use atleast 91 octane (I always do), and to adjust the oil pump, so the engine smokes a little while idling. I have done that. I had the EMM's repaired on my 02 Virage Txi, and my 03 MSX 140, both with the "stage 2" upgrade. Here is my evaluation:

    03 MSX: I haven't had enough time on this to give a good evaluation, as I have had other issues with it.

    02 Virage Txi: It is unreal. The hole shot is unbelievable. The machine just about jumps out of the water. The throttle response is instantanious, all acroos the throttle band. I gained about 50 rpm (6900 - 6950). It is very smooth. The thing I really like, is before, if I was going fast, then I slowed down, then hit the throttle again, there was a delay before it wound up again. Not now, it responds right away.

    This is my personal experience, for what it's worth.

    The reason I went with the stage 2 upgrades was to get the full 1 year warranty
    Last edited by Bigbill55; 06-16-2015 at 01:38 PM. Reason: added info

  9. #9
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    39,201
    +1
    1,716
    Quote Originally Posted by Bigbill55 View Post
    Quote Originally Posted by K447 View Post
    Quote Originally Posted by Mr. Matrix View Post
    I think he advances the timing somehow as well with the stage 2
    Is there an impact on recommended fuel octane?
    I had 2 of my EMM's repaired by the same place this month.

    The only recommendations to were to use at least 91 octane...
    That is a change in octane requirements then.

    The stock Ficht engines are spec'ed for 87 octane, 89 octane if 'oxygenated'. I typically equate ethanol blend as needing 89 octane, but that is simply my perspective.

    I often run 91 octane pump gasoline, not for the octane, but because that is the only way I can buy non-ethanol gasoline in my region. Sometimes only 87 octane is available on the water, of course.

  10. #10
    ripcuda's Avatar
    Join Date
    May 2010
    Location
    Newman Lake, WA
    Posts
    2,479
    +1
    186
    Out of curiosity, I went back and looked at my receipts from my EMM repair. I too had received the Stage 2 upgrade on my repair (from Dec '14).

    Since I had never been on a running DI ski up till that point... I had nothing to compare my results on my rebuilt MSX 140 to except for carb'ed engines. But I would describe how my MSX 140 ran the same way many of the folks here are describing it. Very instantaneous throttle response... very sharp and crisp... no hesitations. If that's a noticeable improvement over stock (which I can't say)... then "way to go!".

    I actually miss that ski... I know... I know.

    Cheers!

Page 1 of 5 123 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. EMM Repair
    By Tjdriver in forum Polaris Open Discussion
    Replies: 163
    Last Post: 08-26-2018, 02:36 PM
  2. EMM Repair
    By retro in forum Polaris Open Discussion
    Replies: 36
    Last Post: 06-24-2014, 01:00 PM
  3. EMM repaired, lets hit the water!
    By elk river rascal in forum Polaris Open Discussion
    Replies: 15
    Last Post: 05-21-2014, 09:16 AM
  4. DIY Emm repair
    By Rowdy72 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 01-18-2014, 06:12 PM
  5. EMM Repair Longevity - Calling those who have had DFI repair an EMM!
    By ThrottleOut in forum Polaris Open Discussion
    Replies: 80
    Last Post: 06-14-2013, 08:18 AM

Posting Permissions

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