fuel supply disconnection

[otto434]

Hello, I am having trouble starting my Johnson 60HP 2 stroke 1987 I am using the "engine manual" start proceedure without success. I can only get the engine to start when I have disconnected the fuel supply line from the tank."Should I be disconnecting my fuel supply line from my self venting 5 Gal. tank at engine shutdown"?<br /><br />ps, I am also guilty of not counting to 8 on the electric primer in start up<br />I will try that tomorrow!<br /><br />Thanks in advance<br />otto434

 

[DJ]

Re: fuel supply disconnection

Hello, I am having trouble starting my Johnson 60HP 2 stroke 1987 I am using the "engine manual" start proceedure without success. I can only get the engine to start when I have disconnected the fuel supply line from the tank."Should I be disconnecting my fuel supply line from my self venting 5 Gal. tank at engine shutdown"?<br />

I cannot see any reason why.

 

[otto434]

Re: fuel supply disconnection

Someone has suggested that air is being drawn into the system if everything is left connected<br />Can this be true?

 

[DJ]

Re: fuel supply disconnection

Otto,<br /><br />That is what the primer bulb is for.

 

[otto434]

Re: fuel supply disconnection

Hello Supreme Mariner,<br />Can you explain why it only starts when the fuel line has been disconnected<br />Best wishes from rainy England

 

[Walker]

Re: fuel supply disconnection

No reason that I can think of Otto

 

[R.Johnson]

Re: fuel supply disconnection

When a 2 stroke engine floods', it will blow the unburned fuel right out the exhaust ports, and clear itself. If your engine starts after disconnecting the fuel tank, I would say it just keeps on flooding itself from a fresh fuel supply such as from the gas tank. Do you have a needle, and seat in the carb, (carbs) that need replacement. If they do, the engine will flood, and keep on flooding, as long as there is a fuel supply.

 

[JB]

Re: fuel supply disconnection

I think R.Johnson has a good idea, Otto.<br /><br />Floats set too high in the carbs or leaking inlet needles can cause exactly what you are getting.<br /><br />Good luck.

 

[otto434]

Re: fuel supply disconnection

Thanks for all the advice from Sunny England

 

[otto434]

Re: fuel supply disconnection

Engine starting Problem solved,<br />I was using the "engine manual" start proceedure<br />ie 1, turn key to switch on position. 2, push in to prime. 3, whilst pushing in turn key to ignition to start. <br />This is where the error was.<br />No 2 should have been press in and release immediately<br /> 3, turn to ignition to start engine.<br /><br />Problem sorted I hope this helps someone else. Happy cruising