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Thread: installed soft start today

  1. #1

    Join Date
    Nov 2012
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    Battle Creek, Ne
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    164

    Default installed soft start today

    Hello everyone! I installed the soft start module from Leading Edge Air Foils today! The install was about 1.5 hrs long since I had to move the Magnetos to their own toggle switch since I had the key switch! On testing, I shut 1 mag off and started my 912. It helped the violet shake that I got when starting! It starts very smooth! If anyone has this issue with their Rotax I would try this.

    thanks Patrick
    Series 6, Tri gear
    912 100 hp, 70" warp drive

  2. #2

    Join Date
    Sep 2018
    Location
    West Chicago, IL
    Posts
    9

    Default Re: installed soft start today

    Hello Patrick

    That is great news to hear, I am considering the same with LEAF. Most people I speak with about this say it is well worth the money and much easier vibration on the airframe/electronics
    Think the new conversion comes in around $2,400 with labor.

    My 2003, 912ULS and has the green stripe coils atop the engine, yet to be fired up for testing.

    Appreciate the commentary.

    Has anyone else installed the soft start conversion on their 912's? ... and to what level of success?
    N928M
    Mike
    West Chicago, IL
    Kitfox 5 Speedster, building
    912ULS, Airmaster 332

  3. #3
    Senior Member Slyfox's Avatar
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    Dec 2008
    Location
    felts field, spokane
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    1,170

    Default Re: installed soft start today

    another alternative is to lower the base idle and start with the throttle pulled all the way back. once it starts you add throttle. cheaper than 2200 dollars in my book. no, you don't run it at low idle, you give it throttle to keep 2000 rpm. you could just put in a McFarlane throttle I suppose. Oh, it's important to choke it with mags off for about 6 seconds first.

    either way, you have to have a smooth start or you will take out the 1 way clutch, a real bummer.
    steve
    slyfox
    model IV 1200-flying
    912uls
    IVO medium in-flight
    RV7A-flying
    IO-360
    constant speed prop

  4. #4
    Senior Member Dorsal's Avatar
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    Sep 2008
    Location
    Central, MA
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    1,486

    Default Re: installed soft start today

    I put the bully-hawk in my 2003 912S after a few rough starts ( ~9 years ago), has been smooth starting ever since.
    Dorsal ~~^~~
    Series 7 - Tri-Gear
    912 ULS Warp Drive

  5. #5
    dginok's Avatar
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    Aug 2009
    Location
    Norman, OK
    Posts
    64

    Default Re: installed soft start today

    I have a 912ULS, 2013 vintage. After a few rough starts in the cold weather, I decided to wire up the soft start function built into the newer engine ignition modules, something I had not done when I built the plane. It seems to work well so far.
    Doug
    Super Sport
    Flying!


  6. #6
    Spook712's Avatar
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    Sep 2009
    Location
    Noervenich, Germany
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    104

    Default Re: installed soft start today

    Quote Originally Posted by Dorsal View Post
    I put the bully-hawk in my 2003 912S after a few rough starts ( ~9 years ago), has been smooth starting ever since.
    Does anybody know where to get one of the modules?

  7. #7
    Senior Member Dusty's Avatar
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    Dec 2012
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    Christchurch, New Zealand
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    286

    Default Re: installed soft start today

    I will have a look in my hanger as I recently saw one there.any reasonable offer will do. Allow post from NZ

  8. #8
    Spook712's Avatar
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    Noervenich, Germany
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    Default Re: installed soft start today

    Cool, let me know 👍🏻😃

  9. #9
    Senior Member Dusty's Avatar
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    Dec 2012
    Location
    Christchurch, New Zealand
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    286

    Default Re: installed soft start today

    Hoping to get to the hanger tomorrow,will dig it out

  10. #10
    Senior Member Dusty's Avatar
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    Dec 2012
    Location
    Christchurch, New Zealand
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    286

    Default Re: installed soft start today

    At this stage it's a no go,myselfe and brother spent nearly an hour looking through numerous boxes and came up blank(I bought the hanger from a retired avionics tech who was als a bit of a hoarder)it is definatly in there somewhere. I will have another look in a week or two.
    apologys for the delay.
    cheers
    Dusty

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