desertratz
Seaman Apprentice
- Joined
- Jul 16, 2017
- Messages
- 49
Im posting this in hopes that it may someday help someone. i saw a few similar threads in different forums but of course the original poster never said what the problem was.
i have a 1989 johnson 70 that runs good at high rpms but when i slow down it will stall it feels like it starts running on 2 cylinders then shuts off. i tried all kinds of things but nothing fixed it. it was hard to figure out what was happening, i chased ignintion problems with no avail. it was getting plenty of fuel, carbs full, primer bulb hard, even would choke it before it stalled and still stalled. after chasing imaginary problems i concluded it had to be a fuel related carb problem so pulled the carbs off for the 5th time. and this is what i found on carb #2. where the brass pickup tube goes through the aluminum carb body, there is a half moon shaped hole where the tube is not sealing against the carb body, probably making the carb loose suction and not pull up fuel especially at low idle. im guessing at hicher speeds the increase in airflow makes it pull up fuel eventhough it is probably not pulling up enough.
i have a 1989 johnson 70 that runs good at high rpms but when i slow down it will stall it feels like it starts running on 2 cylinders then shuts off. i tried all kinds of things but nothing fixed it. it was hard to figure out what was happening, i chased ignintion problems with no avail. it was getting plenty of fuel, carbs full, primer bulb hard, even would choke it before it stalled and still stalled. after chasing imaginary problems i concluded it had to be a fuel related carb problem so pulled the carbs off for the 5th time. and this is what i found on carb #2. where the brass pickup tube goes through the aluminum carb body, there is a half moon shaped hole where the tube is not sealing against the carb body, probably making the carb loose suction and not pull up fuel especially at low idle. im guessing at hicher speeds the increase in airflow makes it pull up fuel eventhough it is probably not pulling up enough.