You can go to any autoparts store and get a heavy duty flasher relay for eight bucks and wire it in there instead of the one that's on your bike. It's very easy to do, and will solve the problem with out soldering and cutting.
Just push the wires through the panel that are connected to the existing relay and connect them to the new relay using inline wire taps and you're done. This all happens under the left dash panel. Use double sided tape to mount it and replace the panel.
Good Luck!