I've had motors start with the ignitor practically dead. There are a few checks you can do to rule out engine failure...
First, make sure the engine can draw fuel on its' own. Simply watch the fuel lines (use a flashlight if need-be to light up the fuel line). See if you can see a solid color in the line. If you see bubbles, or if the line appears empty, try cranking over the engine while watching the line.
If you see fuel moving slowly through the lines, the only issue is that your battery in your starter might need a charge.
Failing that check, place one finger over the exhaust outlet. Don't worry, it won't burn you. Watch the lines and see if fuel shoots up the lines as you turn the engine over (should be FAST).
If that does it, the instant the fuel hits the carb, STOP. Apply the glow ignitor, and see if it fires up. Remove your finger and try to start as normal (this is how I prime my engines, works every time).
If it doesn't, give the engine a HAIR of throttle as you crank it. Roughly about 5%.
If it still won't start, post back and we'll help you further.
