hi guys,

I have a problem with my hyper 8.5 with hyper 21 8 port engine.
I have lost the low end screw from the carb!!!!!!!!!(the gold big one)
Could you tell me how is this possible?? (i didn't touch it)
How can I prevent it happening again???
Is this common fault???, or bad design?????

Last thing,,,, where I can find it quite cheep with P&P????

I'm counting on your help.