That would be 0.010" but a business card will suffice as as a substitute, as a matchbook could, also.
place the magnet on the flywheel in front of magneto and place a buisness card between flywheel and magneto and tighten magneto down.......remove buisness card..
It is actually the stator or flywheel, the coils in the stator is the magneto which is under the flywheel
take magneto off and use fine sandpaper or emory board and knock off surface rust on edge that contacts flywheel........when replacing turn flywheel to where magnet is in front of magneto and place buisness card between flywheel and magneto and tighten down ...remove buisness card......
The magneto air gap is a precision measurement that's taken between the edge of the flywheel and the ignition coil armature. The flywheel and the crankshaft are held together in alignment by the flywheel key.
Most of the Briggs engines can be gapped simply with a business card between the flywheel and the magneto.
it is under the flywheel
You probably need a new coil/magneto. Follow the plug wire to it. If it's a magneto you can try a little sand paper to clean off the flywheel magnet and the magneto points of contact. They aren't touching the magneto so you can get some paper in there. If it's a coil, you will need a new one.
The magneto is replaced as an assembly and not user repairable. It is easily accessable and replacable once the flywheel has been removed....Beaufort
It is a magneto, a little piece under the flywheel cowl with two metal tabs that almost touch the side of the flywheel. Embedded in the flywheel is a magnet that provides a signal to the magneto each time it comes around to fire the spark plug.
Most people use a standard business card between the magnetto and flywheel.
The magneto armature is attached to the crankcase next to the flywheel. It can be located by following the spark plug wire. This leads directly from the spark plug to the magneto.
Yes, on the crankshaft there should be a "slot" called a keyway, and a matching slot on the flywheel, mate a key in the slot of the flywheel and crankshaft, and then your flywheel should be timed, also on a magneto ignition system, makesure the magneto has the proper gap, called "armature air gap" usualy if you put a buossness card in there is a good starting point