Hello RCU members. I have a problem with my 19cc Saito radial. I bought it about 6 weeks ago. I put it on a Great Planes Big Stick 60. I had to shorten the fuselage nose by 2 inches. I broke the engine in on a stand per the manual. I put it on the plane and it never ran right, one cylinder would not fire - usually No. 3. I sent it to Horizon Hobby for repairs. They said, on 3/22/22, that the engine ran good on the bench and it had to be a set-up problem or the plane. I mounted the engine again, this time with 3/4 inch stand offs. This time No. 2 cylinder would not fire. I swapped spark plugs with no. 1 cylinder and no. 2 started firing but No. 3 was not firing. After a long time of teaks with the setting finally we able to get it firing on all cylinders but as soon as you moved it to the runway, it would revert back to 2 cylinders. I had several long time pilots there at our club and no one knew what could be the problem. Has anyone had this problem? If so does anyone have any advice as to what I can do? Does anyone know what plane will that engine work on? Does anyone want to buy it? It's brand new and just came back from Horizon Hobby. Any assistance would be greatly appreciated. I feel like I just threw away a thousand buck. Thank you, JM

its been a year and no moderator has put this in the appropriate section of the forum? explains why half of this forum is broken and the mobil version doesn't work