Inliners International Forums General Discussion Engines Is my one barrel wore out?

Have you adjusted the set screw inside the hex-head end of the solenoid to adjust the base idle? After turning the solenoid to adjust the idle speed, turn the 1/8" hex screw inside all the way on the solenoid, unplug the solenoid, and then adjust the hex screw to get the base idle speed you need (425rpm on my '78 manual). To adjust the hex screw, make sure you have a wrench on the solenoid so you aren't turning the whole unit, just the screw with a Phillips head. Plug the solenoid in and recheck your idle. This usually helps the engine pop-off when you turn the key.