of Carb Diaphrams

What does a good carb diaphram look/feel like?
I am working on a carb rack refurbished by a high dollar 'pro'...
So in we go.. I've lots of info downloaded from this site, a Scotch tool, a FSM, and now, some time.
The first thing noticed is the diaphrams.. Not sure what the should look like.. but here are mine..

   

It seems to me that 'crinkles' or 'wrinkles' are a sign of age and flexibility loss?

Here's a little video.










 

They look like original diaphragms. As long as they are not split or perished they should be fine. From what I've heard the aftermarket ones are a much stiffer composition

Good to see you diggin'-in to carbs. It gets easier !
The wrinkles are normal and provide the diaphragms with the necessary material to travel fully, up and down.

Yeah.. I'm getting kinda deep into them now...
I have a thread started on my candybutt.org page,
candybuttorg.ipage.com/cba/node/1516

I'll update this site once I get further along..

Don

Hi hold them up to a good light ,if you see light coming though then replace

Jafsteph wrote:

Hi hold them up to a good light ,if you see light coming though then replace
 

Yes. That's a good test. Also thinking of flexibility, which relates to sensitivity, which relates to smooth linear throttle response at minor throttle changes.