Those are the symptoms. I was pulling boarder when suddenly I could hear bogging and sounded like a cylinder wasnt firing. Tested comp. all 125 pulled head and cylinders and pistons look great. Revs on trailer and in water but it wont get me over 30 mph on the lake. It starts to sound "choppy" like its trying to fire but isnt. It will kick in for a second or so then nothing. Once it kicked in for a couple minutes but that was it. I have clipped plug boots changed plugs cleaned and checked connections in ebox tightened and cleaned any wires that looked crappy. I do see some backfiring down carbs. Moves from cylinder to cylinder sometimes more then one will see flames down tube. Carbs seem to be supplying fuel. Checked reeds look perfect but hard to say if they are worn. They look damn clean though. moved cages around and flame doesnt follow the valve. Still happens down the same tube i moved reeds from. Any suggestions. I have heard check stator wires, cdi needs swap, temp sensors putting it in "limp mode" reed valves and carbs. PLEASE tell me someone has had this issue and fixed it! I dont want to drop a ton of money on unecessary parts is what it comes down to.