Johnson 115 1999

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I have a Johnson 115 outboard motor 1999, the OB runs rough at idle and huge amounts of oil emerge from the exhaust. I have spark on all four cyls. Can anyone tell me what they think is the cause? And, can I disconnect the oil pump for this outboard, I am on vacation and need help. Thanks The seriel # is G0571830B

 

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Re: Johnson 115 1999

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[ob]

Re: Johnson 115 1999

Paul,Have you identified the oil coming through the exhaust hub as unburned two cycle oil?What exactly do you mean by huge amounts?Just trying to get a feel for your problem.<br /><br />It could be that your VRO pump is overoiling due to air in the fuel line which sometimes will cause it to fibrilate and inject more than the designed ratio of oil to fuel.It can be bypassed by doing a few simple things.<br /><br />#1 - Disconnect the oil line on the inlet side of the VRO pump and either cap or plug the inlet securely.<br />#2 - Locate the wires exiting the VRO pump(should be four) and trace them to the electrical connector.Unplug the connector and secure the loose ends.These wires will disarm the VRO alarm circuit.<br />#3 - Trace the 2 wires from the remote oil tank to its connectors under the cowl and disconnect them.This will disarm the low oil tank alarm.<br />#4 - And most important,Mix 50:1 TCW3 oil in 87 octane gas into your boats fuel tank.Disconnect the fuel hose (or depress ball valve on fuel hose fitting)where it connects to the engine and pump the primer bulb until the fuel coming from line has a hint of the color of oil mixed in gas.This will assure premix has reached from the fuel tank to engine fitting. <br /><br /> That's it .Your engine will run on 50:1 mix and the fuel half of the VRO pump will serve as a conventional 50:1 pumper.

 

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Re: Johnson 115 1999

Thanks for your reply. I found the problem and it was a piece of metal in the needle and seat on # 1 cyl carb. Flooding. All is well. thanks again Paul Wilson.

 

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Re: Johnson 115 1999

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