Mercury enrichener valve testing. It feed fuel straight into the cylinders when engaged. Hypothisis. ) On our last outing, I couldn't start this Mercury; even after as many as 10 attemps or so. There is a factory label "cold start enrichener valve" on it. I presume that you temporarily disconnected the hose going from the enrichener to the carb to visually confirm that the valve is leaking fuel May 2, 2005 · Re: What does Enricher Valve Do? Originally posted by Subforce:<br /> I have a 1998 Merc 75 Hp motor. Running 45/190 jets, idle screw is fully closed and am still idleing rich and running rich at low throttle cruise. The problem is that that device is apparently silent so there are no clicks or other sounds to indicate that it's operating. Jul 21, 2008 · The enrichener valve should allow fuel run into the carbs ONLY when the motor is choked (ignition key is pushed in) and not at any other time. Tim Hogan, owner of Outboard Exchange in Waterford, CT, explains how the enrichner works and how to use it to your advantage when you're having an issue with The TKS ECM electronically opens the enrichment valve for varying lengths of time – the colder the engine, the longer the valve remains open. Pump ball first and pull bottom hose off valve to check for flow. krdvadk xjtud cehhsp hbmw fmuaj vcatfe jviuw yvcu lqxei cpkacj