ORIGINAL: The Real Dogman
Hey Scott, That is the Ofna Chackvalve mod that cures the Half Tank Lean Issue. The "pump" as you refer to it, has a chechvalve function that keeps the pressure consistent in the tank. You install it between the exhaust pressure nipple and the tank with the flow (fucntioning direction) towards the tank. That allows the Checkvalve to hold pressure in the tank..
Of course.
I understand the 'check valve' principle, just never thought of using one of those 'pumps' to do the job.
I personally have never felt the need to fit one.
So, do you find it runs rich on the over run?????
Any down side??