Last Winter during a single digit cold blast, my 240 w/320K, B230F engine developed reluctance to start after work. Had to pump the throttle when cranking like a carborated engine to get extra fuel to it. Fresh plugs and wires, no change. Bentley manual only talks about the cold start valve. Read somewhere my 85 doesn't have one, don't remember which manual or source said that. There are no electrical connections to the intake manifold except the throttle position sensor. New O2 sensor, no change. Changed the Ignition Control Module (used), no change. What do I check for cold start enrichment? Winter hit Southern Colorado with a vengeance this week and it's single digits again. Old Faithful always starts but takes several cranks and throttle stabbings, then it runs very well. Wishing for a hand choke! Thanks for any suggestions.