Professional motorcycle mechanics can work for years and never sustain a serious injury.  If you observe a few rules of common sense and safety, you can enjoy many safe hours servicing your own machine.  You can also hurt yourself or damage the bike if you ignore these rules.
 

1.  Never use gasoline as a cleaning solvent.
2.  Never smoke or use a torch in the vicinity of flammable liquids such as cleaning solvent in open containers.
3. Never smoke or use a torch in an area where batteries are charging.  Highly explosive hydrogen gas is formed during the charging process.
4. If welding or brazing is required on the machine, remove the fuel tank to a safe distance, at least 50 feet away.
5. Be sure to use the proper size wrenches for nut turning.
6. If a nut is tight, think for a moment what would happen to your hand should the wrench slip.  Be guided accordingly.
7. Keep your work area clean and uncluttered.
8. Wear safety goggles in all operations involving drilling, grinding, or use of a chisel.
9. Never use worn tools.
10. Keep a fire extinguisher handy and be sure it's rated for gasoline and electrical fires.