Peter W
I believe the spark plug is at the auto parts store.
Anonymous
If you cannot even locate the spark plug, please take your vehicle to a mechanic.
Anonymous
With knowledge. A cold engine (not run for the day) is best. The bike came with a socket wrench in its tool kit. That always works.
CB
In the cylinder head with a spark plug wrench - follow the ignition wire. IF that is not enough information - step away and have someone competent do the work.
Anonymous
With a socket set.