I just did a timing chain/water pump in our Yale LP lift truck, and now I need to have the idle adjusted way up or it will die while lifting or while warming up. Don't think there are any vacuum leaks. I tried turning the distributor to dozens of different places yet I still get the same results...need to have a high idle or it dies while lifting or turning really sharp. I did mess with the mixture screw, but I don't think that would affect things too much. I just got the service manual for this so I will bring a timing light in tomorrow and see if I can set the timing to factory spec, but I really don't think it's the timing as I have been timing vehicles by ear for decades. I'm even thinking maybe the governor?? This truck is so far out of adjustment it's not funny. I just don't understand what could have happened...I didn't do anything else to it other than adjust the valve stem clearance, put on a new timing chain, and install a new water pump. I can't figure out for the life of me why the idle needs to be up so high just to keep it from dying! Any pointers on what I might check is very much appreciated. Thanks.