Matronics Email Lists

A lot has been said about the 912uls cooling. I have had CHT temps over 240 degF for over 2 years in the summer. Not to red line but Not Comfortable to fly any distance with. I have over 1100 hours on ...

I have the same engine and the same problem. I tried all the tricks I saw on these blogs for 4 years and it sometimes worked but not always. For about the last 20 flights I have put the throttle to ...

Here are some numbers I got after reading this topic last week.
Started off with about 5150 on lift off and 5820 WOT.
I could put the nose to the sky and climb forever (well almost).

After three ...

Has anyone heard of the Crankcase cracking on a 912uls? SB-912-029 makes it sound like it can easily happen. Or is that CYA?

My oil pressure was 38-42 at 5200 RPM. Actually, it was less at higher rpm's. I just installed the parts Roger recommended and was pleased with the result. A pretty solid 55psi overall. It was 13deg ...

Does anyone know of any lsa repairman (airplane) 16hr courses coming up in the Northwest in 2011. Like 300 or so miles from Spokane,Wa. I have checked Rainbow and EAA and they are all way too far sou ...

BJ

What a great way to get the most out of your plane. It sure gets around the fuel and weather problems. I have a friend with a SeaRay who says he can find the pure stuff around boating areas. ...

This site, or others like it, might help.

www.pure-gas.org

Rich

I have a Kitfox S-7 from Skystar with a 912uls and 650 hours on it.

I bought two engine mounts P/N 90048.000, last spring and used them to replace the two lower mounts. I thought they were droopi ...

That was a wonderful story. Well written, clear and concise. It's 2am and I am reading Ernest Gann's Book,
"Fate is the Hunter". I stopped to log on the internet and came across your st ...

Here is a site I hope catches on. I understand boats use these also. I am lucky to have a couple of stations that sell pure premium nearby. I just used the sight to find a station near the Arlingto ...

I have never heard anybody mention AV-9 Oil for the Rotax. This is a replacement for the Aeroshell sport plus 4 and has the additive.
It is also over a dollar cheaper per qt.
I wondered if there is ...

I put the Strut Fairings from Kitfox on 100 hours ago after flying my SS-7 for 500 hours. I gained a little over 10 mph and it looks much better. I for one, am very happy with em.

rich

Thanks Roger

I thought I was OK but when I went to the Rotax Illistrated Parts Cat., it showed the plugs with the caps on.

Please tell me I dont need screw on caps on the dcpr8e plugs on a 912uls. I have always just used the threads and they seem to fit tight. I tried to get one of my plug wires on a plug with the cap o ...

OK, I stand humbly corrected. I will do the complete balance. Thanks for the inputs.

Rich

The engine was running like a top but I had 130 hours since changing plugs and carb balance and it was annual anyway. I just bought a Carbmate and watched the video on ROAN so I was ready. I changed ...

This question is probably for Roger but some others may be interested. Do I have to go through the whole mechanical and dynamic balance each time I balance the carbs on my 912uls or can I just do the ...

I balance my own 912uls so today I tried to do a 914. We followed the same procedure as the 912 but ended up with it being balanced at 1800 and 3700 up to 4500 rpm. We didn't go above 4500 on the gr ...

First I want to thank you all for the ideas to make me think in another direction and I'm not gonna say that box thing.
I found the tab on the lower cowling which slides over the radiator in a KF-7 ...