vfr 400 nc30 fuel in the oil.....WHY? will not start

[tudge-2009]

Hi I have had my bike stood for about 4-5 weeks and now won't START sent the bike into the shop and they said it could be down on a valve but got the bike back today soon as i got the bike home it started first time and kicked aload of blue smoke out then cut out tried all day to get the bike running again but no joy then i checked the oil level and it was FULL TO THE HOLE WITH OIL AND PATROL doe's anyone know why this is any information will be a great help.

[Awynn]

Ok not sure it would even be possible but have you got your crankcase breather pipe mixed up with your fuel line and attached it to your fuel tank, just a random thought

[tudge-2009]

its not that i have already checked, thanks for the help will check it again tho

[Lope]

if you leave your fuel tap on, and theres something wrong with ur carbs, they can leak fuel into your engine.

[tudge-2009]

is i'm new to the bike could it be just that i left the tap on and on the side stand for five weeks.

[Lope]

you should change the oil and turn the fuel tap off when the bike is not running. its kind of an issue some old bikes have, you either continually flip the fuel tap, or you figure out whats wrong with your carbs.

[CMSMJ1]

Stop trying to run it - you'll fuck it up.

Get the tank off and see whether the tap works or not - does off stop the flow?

Then get the carbs off and clean and sort them out - you'll likely have a stuck float that is letting the fuel trickle through the carbs into the engine...washing the bores and diluting the oil in yourr sump = bad

Fix that, change the oil and if your tap does not turn off you will be wanting to either replace it or fit a dry break coupling and remember to stop the flow when you park it up.

Good luck...

[Cammo]

Do what he says! ^^^

you should change the oil and turn the fuel tap off when the bike is not running.

If the fuel tap isn't modified (which a lot are), you shouldn't need to turn it to off when the bike is stopped - the standard tap is vacuum operated, and only opens when the bike is running.

There's also a chance the tap seal is so buggered that it will still leak in the off position. If the carb floats are seating then it still shouldn't leak into the bores though...

[tudge-2009]

does any1 no how you would no if the fuel tap has been modified? pictures of one that has been done preferably thanks

[rc211v]

you can't see if it has been modified unless you open it up. best thing to do is to disconnect the fuel hose and see if fuel continuously flows even if the tap is in the OFF position.