Thanks Brett I ran out of time last night to check it out. I am off tomorrow so I will try and get it set in the am. I bought a os.46ax online to put in it I am just not happy with the performance getting it off the ground and I can always switch it to my next plane. It may be because I am use to heli's and I expect it to have enough power to pull it off the ground I made 4 trips down the runway into a very light wind and it would not pull up. It usually will take off but it takes a good bit of runway to do it. The MKII is a big plane for a 40 size and I think they just underpowered it. LOL Anyway no doubt the 46AX will get the job done. I wont be running much throttle once it is up but that is ok I guess. If not I will put the 46 up and get a new 40 other than the OS 40LA There is .65 HP difference in the 2 engines. Thanks once again for the help, It was sweet making a perfect landing yesterday for the first time LOL I made a couple of landings but they sure went perfect LOL but yesterday it was smack down perfect. Cool as could be. later and thanks again!!!