I started playing with a couple of Chondas today fitting new carby on each one that I had bought from different suppliers. I couldn't get the first one to work because when running the governor was pulling the throttle wide open, gave up and moved onto the second one. Fitted it and ended up with exactly the same problem. Sat there looking at it for some time and looking at one of the original carbs I noticed that the plastic piece the governor rod clips into was operating from the opposite side of the butterfly. I removed the butterfly and fitted the original shaft and they both now work fine. As these carbs require the governor to operate in the opposite direction I can't see what motor they could fit except something where the governor was on the right hand side of the motor. Anybody come across this before ?