Smittymonster
New member
Hello everyone I bought a Chris craft with 2 454 mercruisers I’m replacing cam an lifters in port motor now I’m having issues with STB motor which is a reverse motor an has a mercruiser IV firing system. I have fuel I have spark I have oil pressure seems to roll a little slow but does try to fire but won’t actually fire all the way an run I have checked firing order I have replaced plugs wirers coil. What else do I need to check an or look for ? Thank you