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Discussion Starter #1
So after extracting 4 out of 6 bolts that hold the carbs to the float chamber I finally got the carbs opened and started cleaning. Here are my questions and I'll tackle each one in detail:

1.) Are my diaphragms supposed to look like this?
2.) If there's something wrong with them what would be the consequence?
3.) What's this little o-ring?

1.) Are my diaphragms supposed to look like this?




I noticed that the cover for this chamber had a screw missing as shown here...



and the OTHER carb had what I believe to be an oring missing (shown in question 3). Could this contribute to the messed-upness of the diaphragms?


2.) If there's something wrong with them what would be the consequence?
I took apart the carbs to clean because I was getting random increase and decrease of power. Could these ribboned - melted - whatever diaphragms be a contributing cause?


3.) What's this little o-ring?
I was cleaning the bare main carb piece with a hard brush and this little o-ring showed up out of nowhere:



I assumed it went HERE (if it DOES go here then the other oring is missing on OTHER carb that had BOTH screws):



Thanks everyone.
 

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It looks like the diaphragms deteriorated most likely because of contaminants in the fuel... alcohol or something else.
 
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