Hi All,
Looking for some troubleshooting ideas for my current outboard issue:
I have a 2005 90hp 2 stroke Johnson carbed outboard. I pre-mix the fuel and oil, and still have the original fuel / oil pump with the oil side disconnected and plugged properly.
My problem is at low RPMs, about at "no wake" speed. After running the motor for just a couple of minutes at low RPM, when I give it more throttle, it bogs down and dies. The fuel line primer bulb is empty at that point, but not flattened out (just soft). If I pump the bulb as the motor is beginning to bog down, the motor responds and throttles up. The bulb is located about 2 feet before the fuel line enters the motor cowling if that matters...
I have a Racor 10 micron fuel / H2O separator installed about 2 feet upline from the primer bulb, which has never had water showing in the clear bowl. I have a two year old fuel tank that is only 31 gallons and gets run thru fairly quickly.
My primer bulb hangs in the horizontal position when underway - can that make a difference as I believe the bulb is supposed to be primed in the vertical posistion with the arrow pointing up?
What else should I be looking for? Fuel pump starting to go?
Thanks for any advice you can provide.
Dave
Looking for some troubleshooting ideas for my current outboard issue:
I have a 2005 90hp 2 stroke Johnson carbed outboard. I pre-mix the fuel and oil, and still have the original fuel / oil pump with the oil side disconnected and plugged properly.
My problem is at low RPMs, about at "no wake" speed. After running the motor for just a couple of minutes at low RPM, when I give it more throttle, it bogs down and dies. The fuel line primer bulb is empty at that point, but not flattened out (just soft). If I pump the bulb as the motor is beginning to bog down, the motor responds and throttles up. The bulb is located about 2 feet before the fuel line enters the motor cowling if that matters...
I have a Racor 10 micron fuel / H2O separator installed about 2 feet upline from the primer bulb, which has never had water showing in the clear bowl. I have a two year old fuel tank that is only 31 gallons and gets run thru fairly quickly.
My primer bulb hangs in the horizontal position when underway - can that make a difference as I believe the bulb is supposed to be primed in the vertical posistion with the arrow pointing up?
What else should I be looking for? Fuel pump starting to go?
Thanks for any advice you can provide.
Dave