Hi All

Just a photo of the trike in the terrain as mentioned. It could have been a lot more interesting

Hi Guys Sorry about the delay but have been away and busy. I use unleaded petrol with Castrol Super Outboard which is what I have always used. The engine was run in as per Rotax schedule including a stopwatch and instructions followed to the letter/second. I think the problem was tolerances not bein...

Hi Willie This question has been raised very often but to recap some thoughts. Most people have personal preferences. Castrol TTS is very good for lubrication and clean burning. Downside is it absorbs moisture and costs a lot. Used to use it but changed a few years ago to Castrol Super Outboard. Has...

Hi All Has anybody resleeved the cylinders on a 503 Rotax? I had an overhaul of my 503 where the cylinders were resleeved, new pistons and rings fitted. 8 hours later the rear piston "cold siezed". There were scuff marks on the inlet and exhaust side of the piston and the scuff marks were halfway do...

Hi Rudi Thanks for all the excellent info. I have just been through the same process except I had someone do it for me. I did not know at the time what to do and I had also been looking for a repair manual to no avail. The long and short of it was that I had two new cylinders, pistons, rings, overha...

I have just seen a fellow pilots little rubber pump come to pieces and it was not that old either. Frightening. Even though they do work well it seems you must check them very carefully. I suppose like all things in life the quality differs. Perhaps there are different types of rubber as with condom...

"It is advisable with engines running in the inverted position to use a spark plug with an extended electrode. This aids in stopping spark plug fowling. Look for a BP in its heading (NGK BP 8ES)." Niren's reply "Sorry for the delayed response, but I do eventually come around………ââ‚...

Hi Ian
Keep the posts coming. I am also very interested in the Savannah. By the look of your workshop you are Mr Fixit (Is that you in the photo? ). What experience have you had in building aircraft and what tools does one need. Have you had any difficult phases.
Thanks again.
Alan

Bought one of the first sets at half the price of a Buzzcom set. Not bad to start with but not as clear as my old Buzzcom. I have since received a brand new set free of charge with the mods and quite happy with it.
Service is great and prompt at a realistic price.

Looking up the internet for spark plug info I found the following which may be of interest "If using a spark plug with an BR in its heading, (usually used for ignition noise suppression) such as NGK BR8ES, a resistor cap should not be used. This is because of the double resistance supplied when usin...

Thanks for all the interesting replies. I have decided to do it the manual way (Phineas really will do the work). Seems there are all sorts of legal complications. By the way do the little propellors make the trike go any faster

One difference between the plugs is that the one supplied by Rotax has a fixed plug/cap at the top. The plugs in the red box have the screw on cap which I have seen a spark plug lead come off as the plug had unscrewed.
Make sense?

Thanks John

If nothing else then at least I won't get poked in the eye by the antenna sticking out at 45 degrees when I push the trike out

Last question about this very interesting and informative topic. I was told to face the aerial away from the trike so that it is at right angles to the aerofoil tube. The theory is that the aerofoil tube acts as the ground plane. Is this correct?

Thanks John and others for the useful advice

Hi KB The easiest way to solve your problem is to get one of the rubber primers. I think Aviation Engines have them. Its a little rubber squeegee that has a one way valve (arrow on squeegee) that you give two or three squeezes and Bob's your uncle. I used to always battle if the trike had stood for ...