---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Thu 05/14/09: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 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 _____________________________________ Time: 12:19:28 AM PST US Subject: RotaxEngines-List: Re: 447 mid-range rough running From: "conrad" 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 _____________________________________ Time: 05:23:35 AM PST US From: william sullivan Subject: RotaxEngines-List: 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 _____________________________________ Time: 07:53:38 AM PST US From: Dave Kulp Subject: Re: RotaxEngines-List: 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 _____________________________________ Time: 09:12:08 AM PST US From: william sullivan Subject: RotaxEngines-List: 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 _____________________________________ Time: 02:58:15 PM PST US Subject: Re: RotaxEngines-List: Re: 447 mid-range rough running From: rparigor@suffolk.lib.ny.us Hi Bill What is: "Scott Olendorf's trick"? Thx. Ron Parigoris ________________________________ Message 6 _____________________________________ Time: 03:13:46 PM PST US From: william sullivan Subject: RotaxEngines-List: 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.