Soot from exhaust
Do some a hint for the direction of my trouble shooting. My plane is a Europa Aircraft and the engine is a 912ULS. Now reached 90 hours total time since new and under test flight.
The engine seems to run fine. However I get a lot of soot from the exhaust. It's visible on the wheel spat closest to the exhaust.
The carb needle is set into the second grove (second richest), the floats are adjusted at correct fuel level, new floats 6.5 g, new diaphragm, new needles, new Iridium plugs, newly overhauled ignition but still soothing.
The temperature for Cylinder Head and oil are very low during flight, only around 70 degree C. I can make the temps higher when on the ground and during steep climb. I have covered half of the cooling radiator but still low temp. Outside air temp around 5 degree C. I don't know if the low engine temp can affect the combustion but I include the info just in case.
Hope someone will be able to point me in the right direction.
Regards John
OY-RAF
Europa Classic Tri Gear.
