Hey guys. I'm at my wits end with this thing. The engine starts fine, runs for about 15 to 20 seconds, then kills. This happens over and over again. The battery is fully charged. I've replaced the cdi box... yes the expensive one, replaced the stator, the pulse generator, fuel pump, fuel filter, rebuilt the carb, new and correct plug, fresh oil and filter. Everything looks to be in place. I also took the 2 peep holes off the left cover and made sure the flywheel is lining up with the notch. I don't know what else to do. Please tell me this is an easy fix. I'm tired of dumping money and time into this old girl. She once ran like a top when the cdi went out. Replaced the cdi and it ran great again then one day it just stopped altogether. Any help would be appreciated. Thanks in advance.