Hi Guys, Nice to see some info on the Koalas again. The webiste mentioned is very old and I don't think it has been updated. I too have a Koala which has necver flown as it has never been completed yet. It is my project (on the backburner for a while already). It does not help having a airworthy pla...

Firsltly I must commend Simonini in Italy. They sent me new jets and float needles free of charge to try and help me sort out the problem. Although I only fitted the float needle as a last resort it was the actual problem of why the carbs were spitting fuel. Now I should be able to get better range ...

I had a similar problem : see post spitting carbs. I received new jets and float needle from Simonini free of charge and fitted the jets only at first. Motor is still new in terms of hours and thought the float needle would be still new. Wit new compensated jets I still had the spitting problem and ...

Thanks for that positive reply Smiley, I was at Aviation engines but they could not recommend anything. I finaly got an answer from Simonini themselves telling me I need a 170 main jet and 45 Idle jet. This is what I managed to work out aswell from the tech. docs. But AE does not sell that size jet....

OK after doing some reading see Sticky "usefull technical documents" I have come to the following conclusions which will be tried this weekend. My prop was not ideal and my jetting is too rich. I have bought a new ground adjustable prop but I am looking for some 170 Main jets. Anybody know where I c...

I have one. :D
I will try it out this weekend and if it does not work for me as it is only a 65" three blade it might come up for sale.

Thanks for the info Duck Rogers. flykr and IFLYHI I also remember reading something like that in a copy of the Microflight magazine somewhere in 2003. Unfortunately I cannot find my copy anymore. That exact one is missing. I will get myself some new jets and try them out. I makes sense since the mot...

But it does the same even without the filters.

I have washed the filters with dishwashing liquid and rinsed them thoroughly. They are busy drying and the I will spray them with K&N filter oil. BUt I don't want them to get washed with fuel again, hence I need to get to the bottom of this.

Does it matter?
I left it out to get info irrespective of engine make.
But if it is required it's a Simonini V2P. :D

To all the carburettor gurus. On my motor I have 2 Bing 54 carbs with the following jetting: Idle 40 Main 180 The needle is a 11H2 and is connected on the second groove from the top. I am based in Jhb area so 5400ft ASL. During flight my EGT's are also low indicating overfuelling which is probably b...