os la 40 engine cuts out after five mins of fly need help please
I agree with those saying it is running lean and getting hot......if it gets too hot that engine will stop right now.....
Flyboy, switch to Thunder Tiger Pro engines......I love 'em. My main problems with OS engines has been the mufflers leaking at the seam between the front and back.....I've had to take them apart and RTV the seam in both OS's that I have.