RCU Forums - View Single Post - run a four strock using crankcase pressure or no pressure
Old 02-27-2017, 07:49 AM
  #2  
Bax
My Feedback: (11)
 
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,483
Likes: 0
Received 6 Likes on 5 Posts
Default

The nipple on the crankcase must be vented to the atmosphere. It will not provide pressure. The only way to get pressure is by using a separate tap and a one-way valve with fuel regulator or use muffler pressure.