---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Sun 05/24/15: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:19 AM - Re: Re: 912 rough running below 3000 rpm (vernon mitchell) 2. 05:01 AM - Re: 912 rough running below 3000 rpm912 rough running below 3 (Catz631@aol.com) 3. 06:33 AM - Re: 912 rough running below 3000 rpm912 rough running below 3 (Roger Lee) 4. 08:13 AM - Re: 912 rough running below 3000 rpm912 rough running below 3 (vernon mitchell) 5. 11:11 AM - Re: Re: 912 rough running below 3000 rpm912 rough running below 3 (Flynn Elliott) 6. 03:55 PM - Re: 912 rough running below 3000 rpm (Roger Lee) 7. 11:23 PM - Re: Re: 912 rough running below 3000 rpm (Flynn Elliott) ________________________________ Message 1 _____________________________________ Time: 01:19:11 AM PST US From: "vernon mitchell" Subject: Re: RotaxEngines-List: Re: 912 rough running below 3000 rpm Yes I did. We are now going to strip everything, to see if possibly there is a bit of junk floating around somewhere. -------------------------------------------------- From: "rampil" Sent: Sunday, May 24, 2015 7:03 AM Subject: RotaxEngines-List: Re: 912 rough running below 3000 rpm > > Here's another thought. > > At mid range or less throttle, one of the carb > slides may stick in the barrel, unbalancing > the engine. Did you A&P try balancing > down in the throttle range where you see the > trouble? > > -------- > Ira N224XS > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=442517#442517 > > > ________________________________ Message 2 _____________________________________ Time: 05:01:41 AM PST US From: Catz631@aol.com Subject: Re: RotaxEngines-List: 912 rough running below 3000 rpm912 rough running below 3 Flynn, I had that problem once and finally narrowed it down to the carb operating cables. One would stick during throttle reduction causing an imbalance. I replaced the cables and problem solved. I tried to lube them first but that didn't work well. Just another idea. Dick Maddux 912UL ________________________________ Message 3 _____________________________________ Time: 06:33:19 AM PST US Subject: RotaxEngines-List: Re: 912 rough running below 3000 rpm912 rough running below 3 From: "Roger Lee" Hi Dick, You're right and one thing we never seem to think about very often on the up front side of an issue. Cables on engines that are getting older or live in humid climates can get a little sticky. Just a little bit of friction from rust, corrosion or even just a slightly bent cable will cause carb unbalance. -------- Roger Lee Tucson, Az. Rotax Instructor & Rotax IRC Light Sport Repairman Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442527#442527 ________________________________ Message 4 _____________________________________ Time: 08:13:27 AM PST US From: "vernon mitchell" Subject: Re: RotaxEngines-List: 912 rough running below 3000 rpm912 rough running below 3 Although it did not show up during the balancing, it is worthwhile looking at it again. Vernon From: Catz631@aol.com Sent: Sunday, May 24, 2015 2:00 PM Subject: Re: RotaxEngines-List: 912 rough running below 3000 rpm912 rough running below 3 Flynn, I had that problem once and finally narrowed it down to the carb operating cables. One would stick during throttle reduction causing an imbalance. I replaced the cables and problem solved. I tried to lube them first but that didn't work well. Just another idea. Dick Maddux 912UL ________________________________ Message 5 _____________________________________ Time: 11:11:13 AM PST US From: "Flynn Elliott" Subject: RE: RotaxEngines-List: Re: 912 rough running below 3000 rpm912 rough running below 3 Hi Roger, we think we have the cable's covered, but as Vernon said we will for sure double check. -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Roger Lee Sent: 24 May 2015 03:33 PM Subject: RotaxEngines-List: Re: 912 rough running below 3000 rpm912 rough running below 3 Hi Dick, You're right and one thing we never seem to think about very often on the up front side of an issue. Cables on engines that are getting older or live in humid climates can get a little sticky. Just a little bit of friction from rust, corrosion or even just a slightly bent cable will cause carb unbalance. -------- Roger Lee Tucson, Az. Rotax Instructor & Rotax IRC Light Sport Repairman Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442527#442527 ----- No virus found in this message. Checked by AVG - www.avg.com ________________________________ Message 6 _____________________________________ Time: 03:55:50 PM PST US Subject: RotaxEngines-List: Re: 912 rough running below 3000 rpm From: "Roger Lee" Blow the carbs out with carb cleaner and then follow it with air pressure air. Don't blow against the diaphragm with high pressure air. -------- Roger Lee Tucson, Az. Rotax Instructor & Rotax IRC Light Sport Repairman Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442543#442543 ________________________________ Message 7 _____________________________________ Time: 11:23:23 PM PST US From: "Flynn Elliott" Subject: RE: RotaxEngines-List: Re: 912 rough running below 3000 rpm Good advice, thanks Roger. -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Roger Lee Sent: 25 May 2015 12:55 AM Subject: RotaxEngines-List: Re: 912 rough running below 3000 rpm Blow the carbs out with carb cleaner and then follow it with air pressure air. Don't blow against the diaphragm with high pressure air. -------- Roger Lee Tucson, Az. Rotax Instructor & Rotax IRC Light Sport Repairman Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442543#442543 ----- No virus found in this message. Checked by AVG - www.avg.com ----- No virus found in this message. 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