Fuddyduddy
Regular Contributor
My old Merc runs well at WOT and higher speeds, but doesn't idle down and quits when it gets too slow. Tried adjustments but just will not idle. Seems like the top 2 cylinders are starved at low range. I pull the top 2 plug wires and it makes no difference. The top two are getting spark (boy! Howdy! with a woohoo thrown in) WAGs are welcome. kinda at a loss. Ran well last fall and did all the necessaries. Starts up good.