RCU Forums - View Single Post - Walbro choke
Thread: Walbro choke
View Single Post
Old 04-03-2005, 08:43 AM
  #3  
Diablo-RCU
Senior Member
My Feedback: (1)
 
Join Date: Dec 2001
Location: Hammond, IN
Posts: 3,262
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Walbro choke

Yes, they are pumped. But they won't flow any fuel unless vacuum pulls fuel out of the orifices, which then pulls on the metering diaphragm which then opens the needle off the seat.