F60TLRB #3 Miss

[boat4fun]

I have a 03 F60 that developed a miss on #3 cylinder. I have change the plugs, drained and filled tank with fresh fuel w/ stabilizer also changed fuel filter/separator . Pulled carbs cleaned #3 carb with carb cleaner and compressed air. Still have miss. Ran and pulled each plug wire all had good spark, all dropped rpm except #3 swapped coils and miss didn't change. Does anyone have any suggestions? Missing out on some good fishing.

[99yam40]

Fuel pump maybe dumping fuel if it is like the 2 strokes or carb

[mitch]

yep check the diaphragm on your fuel pump

[choogenboom]

I have a 03 F60 that developed a miss on #3 cylinder. I have change the plugs, drained and filled tank with fresh fuel w/ stabilizer also changed fuel filter/separator . Pulled carbs cleaned #3 carb with carb cleaner and compressed air. Still have miss. Ran and pulled each plug wire all had good spark, all dropped rpm except #3 swapped coils and miss didn't change. Does anyone have any suggestions? Missing out on some good fishing.

How well did you clean your carb? Did you remove the high speed jet and clean it an visually verify the hole in teh jet is open?

[boat4fun]

I disassembled and soaked the carb and jets. also cleaned jets with wire and visually looked through jets. And also when I run the motor and pull the wires one by one #4 and #1 kill the engine but #2 and #3 don't.

[boats.net]

The carb linkage needs to be synchronized each time they are removed on four stroke multi carb engines, they may need to be sync.