pullstarter coil back and stopped the engine
 

i got a new MT2 G.30 engine and i dunno why i pull so many time and than my engine will start but when my string coil back the engine stop. i try alot of time plus when i pull the pullstarter the engine will start and stop dunno why anyone have the same problem with me. pls tell me how to solve it

My TRX 3.3 engine does this sometimes and I find if I let it recoil and dont try to slowly bring it in it solves the probelm,