RE: Dead Ninja .28
i had the same thing happen a few weeks back, engine would quit after high speed passes. it was the fuell filter pulling air at high rpm's, took me an hour to see catch it, tiny bubbles after reving with lid off. it ran great on the box but as soon as i would drive it it would quit. i doubt its the clutch shoes unless the wheels are turning as you start it. clutch shoes kill the engine when you brake.