the spring start coil came un-done and Killed my Q52 while in flight . I removed the spring coil and can't get it to start now . ??? could the time have slipped , it trys to hit but just won't go ahead and run . HOW DO YOU CHECK/SET THE TIME ON THESE THINGS . DENNIS

There's a key in the crankshaft that locates the flywheel..If the flywheel nut came loose the key could have sheared and let the flywheel rotate far enough to be out of time..Take the flywheel off and check the key..Nothing else to slip.....