Today's Message Index:
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1. 12:19 AM - Re: 447 mid-range rough running (conrad)
2. 05:23 AM - Re: 447 mid-range rough running (william sullivan)
3. 07:53 AM - Re: 447 mid-range rough running (Dave Kulp)
4. 09:12 AM - Re: 447 mid-range rough running (william sullivan)
5. 02:58 PM - Re: Re: 447 mid-range rough running (rparigor@suffolk.lib.ny.us)
6. 03:13 PM - Re: 447 mid-range rough running (william sullivan)
Message 1
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| Subject: | Re: 447 mid-range rough running |
Check the needle clip is under the white plastic cup.
Check out the IPC available from www.rotax-aircraft-engines.com to see the correct assembly order.
Conrad
www.conairsports.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243960#243960
Message 2
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| Subject: | Re: 447 mid-range rough running |
- I just went through the Bing on my 447 for about the same reasons.- I
had rough running at an idle- shaking.- When the throttle was advanced,
the engine would either hesitate or lose rpm's.- Seemed to run good at fu
ll throttle.- Air screw adjustments didn't do any good.- I cleaned it o
ut and put a kit in it.- The choke plunger was missing the seal, goo all
over the inside, and the needle clip was above the plastic cup instead of u
nder it.- The "O" ring on top of the needle was missing.- Runs a lot be
tter now.- I used Scott Olendorf's trick on both the main spring and chok
e spring, and it was very easy to re-assemble.- I still have a little ski
p, or shudder, that may be a plug wire.- If you need Scott's web adress,
I can supply.
-
-------------------------
---------------------- Bill Sul
livan
-------------------------
---------------------- Windsor
Locks, Ct.
-------------------------
---------------------- Kolb Fir
estar 447
Message 3
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| Subject: | Re: 447 mid-range rough running |
**Thanks for the tips, Kev. I'll give it a shot and see if it helps. The plane's
been sitting a
lot for the last year, so if I still have a problem, the carb comes off and goes
to a two-cycle
pro who will overhaul if for me.
Thanks, one more time. Wanna get flying!!!
Dave Kulp
Bethlehem, PA
FireFly 11DMK
Run the engine at the "rough rpm for a couple of minutes , then cut the engine,
dont run at at for long before cut and check the plugs. Sounds like its mixture
but which way.....
Check fuel level in the carb bowl .Disassemble the main jet and the needle
jet
and clean, this along with the needle position controls the mid range mixture.
Put the needle back to the normal position , dont run lean!
Check the idle jet is clear as this effects the mid range too .
Do the mixture check first.
Hope this helps
Kev
--------
Austria .............
**
Message 4
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| Subject: | Re: 447 mid-range rough running |
Dave- If it's been sitting for a year, the carb has goo in it.- I would b
et on it.- Look at the Rotax manual.- The carb is very easy to clean ou
t, but you do need some small metric tools, two cans of spray carb cleaner,
and Q-tips.- I think Roger Lee said he'd do it for $50 plus parts and fr
eight.- Parts for a re-build probably are another $50.
-
-------------------------
-------------- Bill Sullivan
-------------------------
-------------- Windsor Locks, Ct.
-------------------------
-------------- Kolb Firestar 447
Message 5
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| Subject: | Re: 447 mid-range rough running |
Hi Bill
What is:
"Scott Olendorf's trick"?
Thx.
Ron Parigoris
Message 6
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| Subject: | Re: 447 mid-range rough running |
- Ron- Scott's trick is on how to get the springs in and out of the carb
without a special tool, and it's probably easier and faster.- His website
address is:
----- http://kolbfirestar.googlepages.com/home
Go to Bing 54 tricks.- Enjoy.- Cleaning and reassembly was not very dif
ficult for me, but the book didn't match what I found in my carb- mine was
assembled incorrectly, worn, and missing an "o" ring.- It ran anyway, not
well, but ran.
-
-------------------------
-------------------- Bill Sullivan
-------------------------
-------------------- Windsor Locks,
Ct.
-------------------------
-------------------- Kolb Firestar
447
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