Auto parts stores sell a 2 part gas tank leak stopper. It's like 2 pieces of clay you mix together. Don't know if it will work on plastic, though.
Steelheart- '03 Speedmaster Black/Yellow
The Hayabusa Killa
16" Shorties/140 mains/Airbox drilled
Procom CDI
"There is no cure for Celibacy. But we can treat the symptoms."
