I have a 1999 ktm 250exc and have been running amsoil interceptor at 50:1 with a 42 pilot jet, n85D needle in the 2nd position from top and a 170 main with the air screw at about 2 turns out, running at about sea level. The bike seems to run great, but I want to make sure I get the best protection I can for my motor, I want my bike to be reliable and last a long time. Is anyone else running this oil at 50:1? I have heard that this is great oil, and it's made to be ran at 50:1. And how does my jetting sound? I mostly trail ride, but do ride hard when I get a chance. Thanks.