Suzuki

There is compression. gas is in the bowls of the carb. the engine will run off the other two cylinders. i choke one "bad" carb out with the engine running for a while. shut the engine off and check the plug...absolutly no fuel on the plugs. there is no fuel going into the cylinder. someone have ideas?

When you have the airbox off carbs and see the thoats of carbs, can you move the slides freely up and they return on their own? thats a weird one? if it was gettting gas but would not start; i would say check the spark plugs and their caps and then the coil since 2 & 4 run on the same coil?