Hi, I have a problem with petrol draining from the tank and seems to be ending up in the exhausts. Is this the float valves at fault? I've been quoted 82 pounds for a set so I want to be sure.
Also I need an air filter, any ideas where I can source these bits?
The bike ticks over fine but has not been used for a long time. I have cleaned the carbs out, any ideas?

Mod edit: Post translated into slightly more legible English
FY