Pulling the engine's start cord turns the flywheel. The flywheel has a magnet or magnets on it that create electrical charge as the flywheel turns, causing them to pass other magnets. The electrical charge travels to the spark plug and starts the engine. Once the engine is running, the inertia created by the flywheel's turning has enough momentum to keep the engine's crankshaft turning between the piston's power strokes. During operation, the flywheel's magnets also induce voltage in the armature to keep the spark plug firing. Those magnets are called a Magneto ignition.
under the flywheel
It requires a special puller.
No. It positions the flywheel in the proper place for the ignition timing.
The coil is under the cowling on top of the motor where the flywheel is.
use a wheel puller
It is the whole assembly containing the pull start (if applicable) or the metal or plastic shroud surrounding the flywheel (it spins when you start the engine ).
There is no way to adjust the timing on a 17.5 Briggs engine. The magnet is on the side of the flywheel and there is only one way the flywheel can line up. All you can do is make wure that the coil is gapped correctly.
Most people use a standard business card between the magnetto and flywheel.
If you know your part number of even model number, you can go to eReplacementParts.com for the Briggs and Stratton parts your looking for. The site features part lists for each engine or motor and includes thousands of detailed diagrams to help you replace the flywheel once you get it. All in all, they are a very good site for finding tool parts in general but for Briggs and Stratton parts, eReplacementParts is the place to go.
For most Briggs and Stratton engines the charging system is under the flywheel. You will have to remove all the shields that cover the top of the engine and the flywheel and then remove the flywheel itself. Once the flywheel is off the stator is exposed. Depending on what model you have there will be a series of screws that hold it to the block. Just unplug the wire connector and remove the screws and it will come off with a little wiggling. Make sure that all the magnets on the bottom side of the flywheel are in place and secure or replacing the stator will not do you any good.
you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points,
The timing is not adjustable. The only way the engine can be out of time is if the keyway between the crankshaft and the flywheel is sheared. If it is in place and in good shape the engine will be in time.