A carb is a carb and any help would be good........
Would a sticky float needle cause surging under load. 2 stroke 20hp Johnson circa early 90's. Boat will start and idle fine and run fine just off idle . Under load it will run good for 20 to 30 seconds and then surge back and forth. If it sits for a few minutes back to the same, run fine under load for 20 or 30 and then surge again.
Would a sticky float needle cause surging under load. 2 stroke 20hp Johnson circa early 90's. Boat will start and idle fine and run fine just off idle . Under load it will run good for 20 to 30 seconds and then surge back and forth. If it sits for a few minutes back to the same, run fine under load for 20 or 30 and then surge again.