Tony

There is a SERVICE INSTRUCTION ROTAX SI-2ST-010 R1 For 582 Mod 99 the approved Rotax plug is 897055; equivalent to NKG BR8ES dia 14 mm For 582 Mod 17, with the "new" head, the approved Rotax plug is 297656, with 2 electrodes dia 12mm; which is also approved for 912 100hp engines, the same plug !! Because most people do not like to pay $ 55 for a single spark plug to Rotax, the NKG offered equivalent for 912 100hp as the DCPR8E Hence, people are using the same DCPR8E in the "new" head 582 and in the 912 ULS 100hp as well. The 912 80hp takes DCPR7E. Confused by my research ? No warrantee, welcome to Rotax !!! 👾😅

Received this email from Bert Flood: Good morning. There are 2 types of spark plug,dependant on model 14mm MOD 99 -897055 12mm MOD17 -297656 I hope this answers your question. For your reference,the illustrated parts catalogue is available to view at :- Technical documentation | Manuals | Rotax Aircraft Engines (flyrotax.com) Kind regards Adam

Thanks again, Thruster88 !!

Thruster88, thanks for your input. Ok, what did you do with the second much smaller Oil Tank, which is supplying oil to Rotary Valves by gravity ?

Hi Guys. What are the propper NKG Spark Plugs for Rotax 582 with Oil Injection system ?

Hi Guys. Because our Rotax 582 (150 hours, 100 psi and 90 psi compression) would not start so often and the Spark Plugs are oily, would it to be a good idea to eliminate oil injection pump and revert to pre-mix fuel 1:50 ?

Por favor, what would be the link to Spanish outlet, gracias.

There are two kinds: Engine Balance Master fitted on Fly Wheel Props Balance Master fitted on Gearbox Flange behind the Prop https://www.leadingedgeairfoils.com/engine-airframe-accessories/balance-master-products.html Are they doing the job, are they any good ? Please share your experience with them.

Well Guys, here we go. I lifted both ailerons up a bit, that is 3/4 of inch for sake of it. Very experieced CFI an Pilot Examiner K.W. at Lynfield tested it there and he said it is much better. Actually, he said, the problem dissappeared and the "aeroplane is now flying like a Thruster". Thanks to you all for your inputs. Incidentally, this Thruster 10-1312 is now for sale at Aviation Classifieds, because I fly Skyranger too. Keep speed, Tony.

Thanks Don. Originally, I had both Ailerons slightly (1/2 Inch on trailing edge) down, thinking I have a sort of good Flaperons setup. But, the aeroplane was feeling "wobbly", so I change it, now they are lining the bottom with the bottom of the wings. Still, sometimes fish tailing..... CFI tested it and made the same comment. Anybody has better setup ? Thanks Tony

Hi Guys, I refurbished my Thruster 10-1312, SG85 and flying it. BTW, it is for sale at "Aviation Clasifieds"........ How much is the Aileron Drop, IF ANY, that is the question ! I have no experience it this, but the aeroplane is sort of not happy sometimes, me too. Washout was done very carefully at 30mm both wings. It feels like it has more than one equilibrium in balace straight and level flight and it is looking for it. Kind Regards Tony (Milan) Vlasak

And there is no balance weights.

I did not bother yet to move the stick left or right more than necessary, which was not more than 1-2 inches. I did not try any turns more than 15 degrees. The feeling was rather alarming. But, on landing there were no problems using the rudder and elevator keeping the wings level. The landings were actually real good. Because the Teleflex Morse push-pull Cables are now 32 years old on this aircraft, I think about to replace them. Thanks Guys for your input !

Hi all, I finally finished the reconstruction of my Thruster SG85 single seater, which I never flew before. Test flight was done by a very experienced L2, who said the aircraft is beautiful, but the ailerons are bit heavy. I took it up myself and yes, they do feel heavy. I had a good experience in Thruster T500, Lightwing 912 NW and TW, Drifter, Jabiru 230D and Jabiru 170. I have never experienced such heavy ailerons in my 350 hours flight life. The feeling is like something is holding the stick, it goes to center, but I must help it. The rudder and elevator work perfectly and very nicely to work with. I am suspecting those push-pull Teleflex Morse Cables, when on ground however, they do not offer much resistance. Any ideas ? Tony

I do not know why and how the RAA can be blamed for this. ALA is "advisory only". Therefore, in a nutshell: What is allowed to Gods is not allowed to Ox.