I have 660 hrs. on my 912ULS and the only thing I have ever done is sync.
the carbs, change plugs a couple of times and change oil @ 50 hrs. Gearbox
was changed @ 250 hrs. for SB about bad metal in gears which mine had.
Ollie
On Wed, Mar 17, 2010 at 10:32 AM, <Catz631@aol.com> wrote:
> Scott,
> Here are some other ideas you can ponder. A few months ago my engine was
> pretty rough when decelerating thru 4000 rpm to about 2800 rpm for
> landing.Like you,I synched everything so I just lived with it. I had an
> interest in a Kiev prop so I bought one. I removed my Warp and installed the
> Kiev for flight tests. I had it on and off for about 4 hours of flying. I
> readjusted the pitch each time to try and get the best performance. Alas, it
> did not work out . I could not get even my old cruise speed so I went back
> to my Warp.(sold the Kiev) One thing I did notice was that thru the mid
> range the engine was smooth as silk with the Kiev ! (as it was overall..what
> a nice prop )!
> I put the Warp back on and there was that rough mid range again (it has
> since abated)
> Perhaps the prop might contribute to the problem? I think the choke idea
> the guys brought up is certainly valid. I don't have a choke only a primer.
> My chokes are wired closed.
> My old nemis,diseling on shutdown (prop turns backwards about 3
> revolutions) has cropped up again. I have fresh premium no alcohol fuel in
> my tanks too. I guess I will pour in some Octane booster and see if that
> stops it. I shouldn't have opened my mouth...the other shoe fell!
> Man, this is a full time job for me keeping this engine running good. I
> sure am glad I am retired and like engines!
> Good luck to you Scott and please keep us informed! Your problem will
> probably be mine tomorrow.
> Dick Maddux
> Kitfox 4-1200
> Rotax 912UL
> Milton,Fl
> PS; I had the wrong Kiev prop on my plane it turns out.The wrong one was
> sent. Soooo I will probably give it another try. I sure loved it !!!
>
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