damn karlos was in there quick :P lol, as far as the mixture goes mate i would advise taking it to a garage but if u do get brave, or some people would say silly lol. then its located ontop of the metering head, it will either be a long thin tube kinda thing or a screw that you have to remove, once removed u then stick the correct sized allen key in the hole and adjust it, i think its clockwise to lean the mixture and anti to richen, but not 100 percent buddy