---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 09/08/08: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:45 AM - 447 needs some tweaking (2danglico) 2. 06:57 AM - Re: RotaxEngines-List Digest (Thom Riddle) 3. 10:09 AM - Rotax List: Re: 447 needs some tweaking (william sullivan) 4. 12:25 PM - Re: RotaxEngines-List Digest (Roger Lee) 5. 09:23 PM - Re: RotaxEngines-List (carl) ________________________________ Message 1 _____________________________________ Time: 06:45:26 AM PST US Subject: RotaxEngines-List: 447 needs some tweaking From: "2danglico" I recently bought a used Kolb Firestar with a freshly rebuilt (4Hrs) Rotax 447 single carb. I'm writing in hopes of getting some advise on getting it tuned up. I'm a little concerned about the EGT/CHT temps I'm getting while operating at speed. I'm getting a lot of surging and stumbling. It's difficult to find a happy cruise RPM. Anything below 5000 RPM and it will slowly load up and begin to lose RPM and run rough. When I try to nudge the throttle up a small amount, I get a surge that puts me up to 5500 RPM. My EGT is only reading 850-900 and my CHT is reading 300-325. I assumed this was indicating a over rich condition but when I checked the plugs I found the healthy looking rust/brown color I've seen in the books. I'm thinking that I may benefit from dropping the neddle down one notch to lean it out and see if I can bring my EGT and CHT in line. Does anyone have any feedback or opinions? Any help I can get will be appreciated. -John Read this topic online here: http://forums.matronics.com/viewtopic.php?p 3161#203161 ________________________________ Message 2 _____________________________________ Time: 06:57:24 AM PST US Subject: RotaxEngines-List: Re: RotaxEngines-List Digest From: "Thom Riddle" Jim, I just got back from a ten day trip without internet access. Thanks for relating your experience with F4040A and the results of your testing of other Tygon products. That is why this list is so valuable to all. -------- Thom Riddle CFI-SP Power Plant Mechanic N221FA Allegro 2000 912UL N197BG FS1/447 -------------------- Scratch any cynic, he said, and youll find a disappointed idealist. George Carlin Read this topic online here: http://forums.matronics.com/viewtopic.php?p 3165#203165 ________________________________ Message 3 _____________________________________ Time: 10:09:44 AM PST US From: william sullivan Subject: RotaxEngines-List: Rotax List: re: 447 needs some tweaking - John- sign up for the Matronics Kolb List.- Lots of information there , too, especially on Rotax on a Kolb. - ------------------------- -------------- Bill Sullivan ________________________________ Message 4 _____________________________________ Time: 12:25:37 PM PST US Subject: RotaxEngines-List: Re: RotaxEngines-List Digest From: "Roger Lee" Hi Jim, Please let me know how your test work out. I was looking for some clear hose for use in the Flight Design CT for a fuel site tube in the cockpit. The tubing we use turns dark brown in about a year with auto gas, 100LL doesn't cause the discoloration. I talked to Tygon and they told me all their clear tubing would eventually turn brown with auto fuel so a did not pursue this with them. I would be very interested in how the SE200 works out. This is not a hot environment for us, but does have fuel in it 24/7. Good luck I hope it works out well. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p 3252#203252 ________________________________ Message 5 _____________________________________ Time: 09:23:18 PM PST US From: "carl" Subject: RotaxEngines-List: Re: RotaxEngines-List Testing Carl ------------------------------------------------------------------------------------- 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.