The carb was leaking fuel out of the bottom; it appears to be an â€œoverflowâ€ valve. I rang the local Kawasaki workshop who suggested brining the carb in to be serviced & have the float valve changed. After a few days I get the â€œservicedâ€ carb back & refit the carb to the bike. I take the bike for a test ride of about 4 kilometres to get home and have it just cut out. Several attempts to restart it, no go. At this point I notice that the oil level look a bit high but think it is because the bike in not on level ground. An hour later the bike starts first kick and I decide to take it to the workshop in case they need to change any settings or tweak anything. I get there and the bike cuts out again. The young mechanic looks at it, turns a few screws on the carb, talks to the boss. The boss says â€œthe valve clearances seem to be blocked, we need to take the head offâ€. After a week they have done nothing to the bike. I go there to get it & the fuel tap has been in the on position for a week. All the fuel from the tank has â€œfoundâ€ its way into the motor! The motor is now well over full with fluid that has the smell & consistency of fuel but is black like used oil! What have they done? And how do I fix it?