Reply To: Loosing fuel supply at 10k rpm
Did you get a can of carb cleaner and spray the airbox outlets that swallow the carb and also spray the intake pipes attached to engine cylinder heads for any revs changing ?
Possibly a loss of vacuum under the engine intake pipes where the O-rings are (there is o-rings that sometimes need changing) , tedious process as its awkward to remove the airbox but fortunately forum has 2x tutorials to make this a whole lot easier. Check the Air Lines thats feeding the pump for cracks ?
Large fuel lines would just hold more volume inside which is what you want , then more fuel is readily available as soon as the floats open inside the carb.
Did at any point the carb got opened to change jets ? Micro dust particles have entered the carb before closing up? or is there a chance the floats got bent even if it’s just 1mm off (see this link below to check float height as it directly affects how much fuel the carbs have before it shuts off , too much adjustment will simply leak out of the overflow or drown the engine – be cautious. or look at possibly jammed floats not opening fully?)