"Tried to get a 1995 50hp John
"Tried to get a 1995 50hp Johnson running; not successful. Can turn the red primer arrow to the left (CCW) to prime the carbs, and then back CW to the detented (normal) position, and the engine will start right up and run for just a few seconds until it has used up that primed amount of fuel. Tried using what seems to be the electric choke/prime capability on the ignition switch (pressing the switch in while the engine was running) to see if I could keep it running. No luck; it did not seem to make any difference as to whether the ignition switch was pressed in or not. Tried squeezing the gas line primer bulb while the engine was running, and that did not seem to help either. When I get it to start and run a few seconds with the manual primer (red lever), the exhaust has blue smoke in it, so it looks like the automatic oil mixing system is functioning, insofar as mixing in the oil with the gas going to the primer solenoid is concerned. The carbs were both rebuilt last year (by a licensed outboard motor tech, but the boat has not been in the water since they were rebuilt). I tried to start it last fall, and got the same response as I am getting now, but I don't have any operator's or service manual on the motor (I bought it "used"). I did get it to start for a few seconds by turning the red lever (I figured it was some sort of manual choke, but did not know exactly how it functioned or in what position it should be left for normal operation), and since I did not have a manual for it, I decided to leave it until I had more time to check it out further(which is now, some 7 months later!). It could be that both of the carb float needle valves are stuck in the closed position, but I doubt that is the most likely cause of my problem. Is there a relatively easy way to check to see if the bowls are getting filled? Is there a way that fuel could be getting to the primer solenoid but not to the normal fuel input port on the carb? I find it difficult to believe that the couple of carb bowls of fuel each would be able to produce enough "varnish" to clog up both the low and hi speed jets on both carbs, to the point that the engine would not run at all with no load... but perhaps that's the case. Any recommendations? Thanks."
"Tried to get a 1995 50hp Johnson running; not successful. Can turn the red primer arrow to the left (CCW) to prime the carbs, and then back CW to the detented (normal) position, and the engine will start right up and run for just a few seconds until it has used up that primed amount of fuel. Tried using what seems to be the electric choke/prime capability on the ignition switch (pressing the switch in while the engine was running) to see if I could keep it running. No luck; it did not seem to make any difference as to whether the ignition switch was pressed in or not. Tried squeezing the gas line primer bulb while the engine was running, and that did not seem to help either. When I get it to start and run a few seconds with the manual primer (red lever), the exhaust has blue smoke in it, so it looks like the automatic oil mixing system is functioning, insofar as mixing in the oil with the gas going to the primer solenoid is concerned. The carbs were both rebuilt last year (by a licensed outboard motor tech, but the boat has not been in the water since they were rebuilt). I tried to start it last fall, and got the same response as I am getting now, but I don't have any operator's or service manual on the motor (I bought it "used"). I did get it to start for a few seconds by turning the red lever (I figured it was some sort of manual choke, but did not know exactly how it functioned or in what position it should be left for normal operation), and since I did not have a manual for it, I decided to leave it until I had more time to check it out further(which is now, some 7 months later!). It could be that both of the carb float needle valves are stuck in the closed position, but I doubt that is the most likely cause of my problem. Is there a relatively easy way to check to see if the bowls are getting filled? Is there a way that fuel could be getting to the primer solenoid but not to the normal fuel input port on the carb? I find it difficult to believe that the couple of carb bowls of fuel each would be able to produce enough "varnish" to clog up both the low and hi speed jets on both carbs, to the point that the engine would not run at all with no load... but perhaps that's the case. Any recommendations? Thanks."