this motor starts ezzzy but in foward it runs rough when i take off or hold it open.... in neutral itrevs and holds fine ...... also fine in reverse lost
You may be running on only one cylinder. Warm it up and pull the plug wires one at a time to see if it makes a difference; in neutral the engine should run on one cylinder fairly well.
Then test compression to see if the cylinders are within 10% of each other.
