ok so ive started a couple of threads you guys are great so here goes another. 65Hp 1972 evinrude, orgnial problem was 2 cylenders were not working so i started with compression 120 on all 3. then puleed carbs all apart recent rebuild by the looks of things in there and shot everything with air every orfice. changed all plugs, now all three are firing but at low trottle the rpms are jumping not smooth at all. were do i go next any ideas its almost the end of fishing season and i would like to at least get on the water one more time