>noticing an uneven rpm when idling bellow 900 rpm. >To start the engine when cold, now I have to give it some throttle so >it won't die. Once it has run for a few minutes then, a consistent >up-and-down variation in rpm occurs when bellow 900 rpms. >The problem goes away at about 1000 rpm or gets somewhat reduced >when I put the engine in gear. Sounds like an air leak in the fuel system to me. Jim Alexander, Realtor Vista 43 Port Charlotte, FL