Motorcycle plastic shell is white, it is best not to damage the paint can be cleaned
With the addition of rubber or gasoline, it is best to use glue, paint when not too hard, otherwise it will hurt the paint.
Try to use detergent or salt powder with a rag slowly erase, you can!
Do not use gasoline, water, pine, xylene and other solvents!First try with alcohol, and then do not use cotton balls dipped in refined oil, olive oil gently wipe, wipe with soap water and then clean it, and then dry.I hope you can help, I wish you success.