Replacing stator where is it located on this motorcycle

The stator generates the electric via the Copper coils. It is located on the the end of the engine crankshaft. To get to that you will need to remove the body panels to to get to the engine. Testing via meters.

try you tube it can help show you clips how to do quick fixes on different things.

The alternator (rotor and stator) are located inside the primary cover on the left side of the bike. They are behind the compensator sprocket. If the problem is the stator, make sure to replace the four stator bolts. Don't reuse the old ones or they may come loose and cause you more problems.

Locate the wire harness coming out of the stator on the left crank case cover of the motor and follow it to the plug with three yellow wires. This is the stator plug. You should have continuity between any combination of the three yellow wires, but no continuity between any of the yellow wires and ground. If the stator yellow wires are grounding you will have to replace the stator. To replace the stator remove the left crank case cover and unbolt the stator from the inside of the cover. Do not forget to purchase a new left cover gasket with the new stator or you will just delay your riding.

Locate the wire harness coming out of the back of the motor and follow it to the plug with three yellow wires. This is the stator plug. You should have continuity between any combination of the three yellow wires, but no continuity between any of the yellow wires and ground. If the stator yellow wires are grounding you will have to replace the stator. To replace the stator you have to remove the motor from the frame or at least unbolt the motor and rotate it enough to remove the rear cover and unbolt the stator.

It is the little rectangular, silver or black thing with cooling fins and wires attache to the outside of your battery holder, under the left hand side cover. I've got a blue 84 GS1150EX.

hello and welcome
the alternator per say is split up into several components. the stator coil(located in the left crankcase cover) and the rectifier regulator (which is located bolted onto the frame above the stator area. you can identify this by three yellow wires going into it.
either one can be tested the regulator can be tested at a local dealership. and the stator can be tested by reading an ohm meter between either one of its three wires and ground. if any show up with any continuity between the unplugged yellow wires at the stator and ground the stator is at fault. thank you.