---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Tue 07/07/09: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:54 PM - Re: Rotax 2 stroke (Noel) 2. 10:21 PM - Re: Rotax 2 stroke (william Mills) ________________________________ Message 1 _____________________________________ Time: 06:54:34 PM PST US From: "Noel" Subject: RE: RotaxEngines-List: Rotax 2 stroke I've been away for a few days so I expect by now you have many replies... My advice is twofold. First get EGT gauges for both cylinders and check by reading the plugs what the correct temperature for your engine is. Second is to avoid like the plague extended periods of no load running. Like long descents. If you have a long decent pull the throttle right back to idle ( where it is naturally richer) and apply a few seconds of climb every thirty seconds or so to prevent the engine from cooling too much. Noel From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Catz631@aol.com Sent: 05 July 2009 09:30 Subject: RotaxEngines-List: Rotax 2 stroke I own a Kitfox with a 912 but some friends of mine bought a Challenger 2 with a Rotax 530 (52 hp I believe) and are flying around in it with little knowledge of the engine. I am in the same boat as I have concentrated on my 912 and know nothing about two strokes (except I liked the one on my 1962 Saab 96 I used to have) I went flying in the Challenger the other day and really enjoyed the flight and the smoothness of the engine. It was the only time I have been in front of a two stroke. I know they have a dubious reputation if not treated correctly and was wondering if some of you guys can give me some short tips as to the proper care and feeding of the engine which I could pass on. As an example, when the pilot I was flying with pulled the power back on descent, the EGT red warning light came on warning of exceeding the red line (or close) The pilot blew that off as a fault, but I am not so sure. They plan on going to school on the two stroke (Lockwood,Mississippi Light Aircraft,etc.) but in the mean time, is there anything to watch out for. The engine has about 325 hrs on it .It was torn down and checked prior to purchase and was reported very clean. It runs and starts great! The outside temp this time of year is running close to 100 degrees (it sucks !!!!) You have to put a block of ice on the engines to cool them down for start! I have a CPS catalog which has super info on the two strokes and will give that to them but I thought perhaps some tips from guys with real real experience would be useful until they get to school. Thanks !! Dick Maddux Kitfox 4 Rotax 912 UL Milton,Fl _____ Make your summer sizzle with fast and easy recipes for the grill. ________________________________ Message 2 _____________________________________ Time: 10:21:07 PM PST US Subject: Re: RotaxEngines-List: Rotax 2 stroke From: william Mills Guys - See the url in the letter pasted below for. I don't operate a two-stroke bu t have spoken with bh who flew his Kitfox/582 across the Cascades often and without worry. I considered him a two-stroke guru as did others on that list. ======= >From a "Letter" to EAA Experimenter from Richard Pike, comes the URL for an interesting article on 2-stroke tuning. It covers EGT/CHT vs Prop load, an d also color displays of what the spark plugs should look like. It is "must" reading for all of us 2-strokers. Go to: http://www.bcchapel.org/pages/0003/pg11.htm bh ====== Bill On Tue, Jul 7, 2009 at 6:53 PM, Noel wrote: > I=92ve been away for a few days so I expect by now you have many > replies... My advice is twofold. > > First get EGT gauges for both cylinders and check by reading the plugs wh at > the correct temperature for your engine is. > > Second is to avoid like the plague extended periods of no load running. > Like long descents. If you have a long decent pull the throttle right ba ck > to idle ( where it is naturally richer) and apply a few seconds of climb > every thirty seconds or so to prevent the engine from cooling too much. > > Noel > > ------------------------------------------------------------------------------------- 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.