To use the magnetic flywheel puller, the proper steps must be followed:
Make sure you have the correct tool designed specifically for your motorcycle model ( in this case, the 315/4RT S3 model).
Switch off the motorcycle and disconnect the battery if necessary.
Remove any covers or shields that may be on the magnetic steering wheel to access it.
Place the magnetic steering wheel puller on the end the crankshaft, aligning the pins or hooks on the tool with the slots in the flywheel.
Securely secure the puller using the wrench or tool provided with the puller kit .
Turn the center bolt or nut on the puller counterclockwise to apply pressure and remove the flywheel from the crankshaft. Note that it may require some force to loosen it.
Once the magnetic flywheel is removed, you can perform any necessary maintenance or replacement on the ignition system. To re-install the magnetic flywheel, simply follow the steps in reverse order, making sure to properly tighten the flywheel bolts or screws.
If you are inexperienced or not If you feel comfortable doing this task, I would recommend seeking the help of a mechanic who specializes in trials motorcycles. They have the experience and the right tools to get the job done safely and effectively.