toddlamp8 wrote on 12/31/69 at 16:00:10:I was just looking over the carb diagram and noticed that there is a diaphragm assembly that is still on the carb as it's soaking in carb cleaner. I am assuming it's toast.
What exactly does that part do? That was on the last time I dunked the carb.
You didn't remove the transient enrichment valve cover first?
So you dunked the diaphragm that's in it? OY!
Hmmmm... Maybe no carburetor cleanup got in there! (I'm probably wishful thinking for you).
I found this info for you:
TRANSIENT ENRICHMENT SYSTEM
This transient enrichment system is a device which keeps fuel/air mixture ratio constant in order not to generate unstable combustion when the throttle grip is returned suddenly during high speed driving. For normal operation, joining of the air from upper part of carburetor inlet side to pilot air passage obtains proper fuel/air mixture ratio. But if the throttle valve is suddenly closed, a large negative pressure generated on cylinder side is applied to a diaphragm. The valve @ which interlocks with the diaphragm closes an
air passage, thus, the pressure flows out to the pilot air passage.
This is system to keep the combustion condition constant by varying the fuel/air mixture ratio by controlling air flow in the pilot circuit.
url:
http://www.vx800.net/man_eng/06_Fuel%20and%20lubrication%20system.pdf