So, did you throw all these parts at this thing, and take this shotgun approach your self , or did you have someone "helping" you.Complete the sync and link proceedure in your manual. Do a compression test to make sure your not kicking a dead horse and a little more info in your post might get you more help.
I have a friend who is a mercury service tech and he was helping me, I think the hi temp sensor fixed my first problem,but while searching for my problem we caused another problem which caused the middle carb to stop so I was not getting enough gas to two cyclinders repaired the carbs today seem to run fine today until I went to load my 25 pro-line cuddy on the trl engine bogged real bad, after reversing the engine and going back to forward it loaded the boat
