27-01-26, 09:41 PM
Sounds like the pilot jets are still blocked. Set the the pilot screws to the factory setting of 2 turns out from fully in, but on standard setup carbs 2.5 works better. The air cut off valve gets clogged up and may need to be cleaned out. although a non working ones usuallycauses a jump on acceleration when opening the throttle after after slowing down to almost stopped and Rarely cleaned as it means seperating the 4 carbs to get at all four. You will see this on the left side of the carb, it is a round cover with two screws. Inside is a small diaphragm and a spring. These are still available if they need to be replaced.The crankcase is vented into the air inatake after the airfilter and can effect this if idle for some time.