Thanks for your reply, my motor is cutting off after running for just a few seconds. If I run it up to full power it seems like it just keeps getting slower ( guessing by about 100rpm) then it will shut off. Usually when I cut the throttle off the prop woud slow down gradually then stop like it shoud but know when I cut the throttle it stops very abruptly like the esc on the brake is on but it isnt. Any ideas? Thanks in advance for your help. Jeremy