I am working on a Rover raider with a tecumseh Ov358ea 13.5 engine.
It has had issues starting since I've had it, in fact I've never got it running. It will turn over but fail to fire and then cough out of the intake.
I though it may have had a stuck valve but have check the valves and adjusted the clearances (they were within tolerance anyway) but still no good.
I now think it may be a head gasket or the fly wheel key has sheared so my first question is:
What does correct ignition timing look like regarding the coil and the magnet? I understand that a few degrees advanced timing is ideal but does the following picture suggest too much advancement??
For context the engine is currently at TDC and both the intake and exhaust valves are closed.
