Scooterotica

"How can we tell one fluoroelastomer from an old tap washer"

Just subject it to intense heat or burn it. When it's cooled rub your index finger on the residue. If your finger is severely burnt by the fluoric (bad spelling) acid and you have to have it fully or partially amputated to save your arm or worse . . . . then it's not a tap washer, its fluoroelastomer.

things like this crack me up people produce 500-600 quid kits that need 200-400 cranks yet no one seems to have come up with a decent fuel tap