Here is the problem after a rebuild I am having spark issues , the problem is hard to find cause I have spark on all 4 cylinders then I loose spark on 2 & 4 then I have spark again took it to lake had spark on all 4 was running good then motor lost rpm and then it regained the rpm did this over a few times then would not idle lost spark again on 2 & 4 only to pull out of lake and take home an put on hose to have spark again , what could be causing this seems to only loose spark on those cylinders when in lake so hard to track down issues cause when i get it home to trouble shoot it has spark..any ideas.. is this most likly a short some where ?
