if it runs with the glowstart on only then id say its the glowplug, maybe u got 2 faulty plugs?

whats the temp outside and what plug are u running?

im thinking if its not the glowplug lean it up, ALOT.
when a nitro motor, or any 2 stroke is too rich, when u apply throttle it boggs up and dies, and it doesnt run unless an igniter is in.

p.s. congrats on ur first post!!