Need setting for magneto on mac2815 trimmer

SOURCE: How can I determine if my husqvarna magneto is working?

Remove spark plug from the engine, reconnect it to the plug cap cable which come from the bobin.

Find a piece of steel wire jumper, atleast a foot. Make a jump from the metal body of the plug to the chassis of the engine.

Safety issue: Place the plug away from the spark plug's hole on top of the engine to avoid gas ignite.

Set the trimmer on the floor, set the gap of the spark where visibility while you pull the string.

Pull the start string and the arc could be seen right on the plug gap. Consider an Arc Purple or Blue coloration are good.

If the arc has not been seen, the Magneto need to be serviced.

SOURCE: Homelite Mighty Lite Lawn Trimmer Magneto Air Gap setting 25cc

Normall setting is 10 thou but if there is no play in the crank bearings you can set at 8 thou