DF70 will not start after warmup

[Anubus6]

I have a 1999 DF70 that starts every time when cold but will not start after the engine has been running.

I have not determined how long after the engine has been running that it will not start but if I run at full power for 15 mins the engine will not start unless I left it sit for about and hour.

I also notice that if I move the motor around (tilt up and left or right) the motor attempts to start but dies.

If seems like a fuel problem but I think it might be ignition/ECU?

Any help or ideas?

Thanks!

[hentree56]

sounds like an ignition problem, a coil winding probably has a break in it somewhere and when it gets hot and expands the windings, the gap is to far to jump at cranking speed till it cools down.