Episode #93 of ‘Fix my carb’: read at your own peril. You’ve been warned.
When I pull on the ‘plunger’ (what is the right word?) of the
acceleration pump the engine slows down.
I can’t find a description of how this part works. (I can find
a description of how the ‘auxiliary acceleration pump’ works, but
that’s different.)
Does it control fuel or air?
Is it pneumatic or electrical?
What sensor makes it move? Does it respond to temperature or pressure
or mixture…?
Find a picture of my carburetor here:
Carburetor of a Toyota 22R engine
'87 Toyota Pickup 22R engine manual