Jett 50 problem
i have a fairly new Jett 50, it has about 10 or 12 flights on it. The first 5 to 6 flights where very good ran strong no hesitation, these last several flights have been fairly poor. After starting the motor and taxing out it seems to load up and on a couple of occasions it boggs and sputters so bad I abort the take off. The last 3 successful flights still have a bogg down or hesitaion in flight sometimes it happens just once other flights in happens the whole flight.
So far I have moved the needle valve off the back of the motor( no change), I put all new fuel lines in yesterday (no change), I have very slightly leaned the low end ( no change).
On the bench I am hitting 14,800 turning a 10x8(make that a 10x6) 2 blade pusher prop using the power master 15%. I have this motor on a Nitro models Bobcat. The tank faces forward like in a regular plane so it has long fuel lines
I am out of idea's , help if you can...
Thanks