I am having some problems with the idle and with the engine over heating. The idle drops to approximately 500 RPM after you let off the gas. It will then return to 750. I bumped up the idle to about 800 RPM or so it works fine (no stalling but still drops first). After the inital drop in the idle it will idle just fine. However if I run the air conditioner the idle drops lower and it will stall more frequently. The engine also over heats with the air conditioner running. Has anyone else had this problem. Is it normal for the idle to drop to 500 rpms and then move back up to 750? Anyone had any problems with engine over heating with air conditioner on. Thanks.