My 79 merc 1150 runs great at full throttle but idles like crap. It idled perfectly until I changed plugs from NGK to Champion. I put the old plugs back in (not fouled) with the same result. It starts up very easily and idles ok until I open it up then pull back to neutral, then it immediately dies. I'm doing a compression test this weekend, but I'm wondering: will a motor with bad compression run that good at WOT? My plan of attack is this:<br />1) Compression test and test for good spark<br />2) Adjust idle mixture<br />3) Clean and rebuild carbs<br />4) Rebuild fuel pump <br />5) Set timing<br />Am I on the right track? Please let me know if I'm leaving anything out or going in the wrong order. Any comments or similar experiences are greatly appreciated.
