Steven Whitworth
New member
Hello,
I have a Yamaha-built Mariner 2cyl 2stroke man-start outboard that broke down at the lake the other day. After shutting it down for a few mins, it would not restart. After checking the tank, line, bulb etc and attempting to start several times, I realized the bulb would not stay firm and there seemed to be a lot of fuel/oil in the water behind the boat. The starter cord also became much more difficult to pull.
I paddled home.
Today I checked the fuel pump by plugging the outlet and squeezing the primer bulb and found that fuel was coming out the pulse port that usually connects to the crankcase in one of the cylinders. This means I'll have to replace the diaphragm right?
The hard-pulling cord is still there too. If I remove the spark plugs it's much easier but as soon as I replace them I can barely pull the cord (even slowly).
What's going on here? Any ideas?
Thanks.
I have a Yamaha-built Mariner 2cyl 2stroke man-start outboard that broke down at the lake the other day. After shutting it down for a few mins, it would not restart. After checking the tank, line, bulb etc and attempting to start several times, I realized the bulb would not stay firm and there seemed to be a lot of fuel/oil in the water behind the boat. The starter cord also became much more difficult to pull.
I paddled home.
Today I checked the fuel pump by plugging the outlet and squeezing the primer bulb and found that fuel was coming out the pulse port that usually connects to the crankcase in one of the cylinders. This means I'll have to replace the diaphragm right?
The hard-pulling cord is still there too. If I remove the spark plugs it's much easier but as soon as I replace them I can barely pull the cord (even slowly).
What's going on here? Any ideas?
Thanks.
