Originally Posted by
raptormasque
Hi,
I have already started the break-in of my FG90.
It seems to be a long story !
The 3 cylinders do not run evenly from the beginning and also each temperature of
the 3 cylinders do not rise evenly.
The third cylinder stays almost cold and spits out white smoke erratically.
https://goo.gl/photos/bcMpTK2AqFpDD78c9
https://goo.gl/photos/wdaHKDFonHcNfvFm7
Any idea or comments ?
Best regards,
Alain
I have the 84cc motor and love it. I did have the Ray Mod motor but it broke. Please don't ask or go read the 84cc thread for details. If the 90cc is like it. I found that you have to break it in just the manual said. Real Rich so it doesn't rev many rpms at full throttle. Burn 2 tanks like this. I set my needles based on the highest temps on the ground with no cowl. It runs real nice with a little bit of popping during transition. But it now has over 20 flights and it is living.
FYI it likes fuel. My needles came out to 6 high and 4.5 on the low needle.
https://www.youtube.com/watch?v=C7kIlT71QW8
Make sure you baffle it on a plane with a cowl. Keleo has the baffles cheap pre cut.