I'm hoping someone might be able to help me out. I have a couple of questions about my Cosa as it not running quite right. I've never had a Cosa before, but have quickly found out that pretty much everything is different to a PX. Does anybody know if anyone does a workshop manual in English? I know there are a couple in German, I mean I could get by with one of them but only if it has fairly detailed diagrams, what are either of the German workshop manuals like?
Right now lets get to the point. Problem number 1, from cold it runs fine, as soon as the choke switches off it just won't rev up properly. To pull away you have to keep trying to rev it until eventually pulls away, but it pulls away slowly, and is constantly pulling back. when you pull back the throttle, there is a delay before the engine revs. I've cleaned the carb out etc, does anybody know how far out the screw should be that turns the petrol on and off on the carb? What is the normal setting for the air mixture screw?
The second problem is does anybody have a wiring diagram that can actaully be read? I know there is a couple on the Scooterhelp website, but you can't actually read any of it, even when you enlarge it just makes it blurred?