#2 and #3 cylinders appear to not be firing, have spark and going to go through carbs. How do you disassemble the lower carb oil linkage arm? Does it snap like the carbuerator linkage on the other side? I haven't ever taken this unit apart. Wondering if I need to remove oil resevoir or can access everying I need to without doing that. Any videos would be helpful, I found a pretty good one on Boats.net. Thanks