Hello!
The fuel chicken has been in prime position by mistake and leaked onto the floor!
Before winter storage switched to new oil now smells of oil a little gasoline.
The oil level seems alright, starts and sounds good.
What did you do on those occasions when the the fuel chicken is wrong and overflowing?

Waiting for spring-Tobbe-Sweden

You might want to check the float height in the carbs as well as the needle valve; even when the petcock is set to prime, the needle valve should stop the fuel flow.

In terms of fuel in the oil, this does thin out the oil and it doesn't have the same lubrication qualities; so you really should go ahead and do an oil change.

Thanks, I will pour out in a glass jar, then maybe the gasoline appear floating above the oil?
Otherwise, well my expensive oil be discarded!

Mmmm, I'd give that all a little more thought.  I parked my old 97 GS in prime once and after it sat a long while and I went to use it again I checked the oil level first and it was about a pint or more overfull and smelled strongly of gas.  I changed my oil and was on my way without further problems. Probably just a spec of dirt holding the needle valve open and it flushed away after starting bike.

If there was no noticeable change in the oil level I don't think I'd change the oil in your case.  Every time we start up in very cold weather there is probably a wee bit of gas finding it's way into the oil particularly when it takes a lot of cranking and results in a bit of flooding and draining down.  Water is a natural byproduct of internal combustion and we burn off the water when we get the oil temp above 212F, why not the gas too if it isn't enough to dilute the oil to where it can cause damage from dilution.

On the other hand as we said about cars many decades ago, you can buy a whole lot of oil for the price of an engine.  Your bike, your choice.   

If the bike is sitting somewhere with fluctuating temperatures and not being ridden I'd recommend changing the oil anyways. Water will condense into the crankcase and get into the oil, similar to what happens with the gas going bad.

If the oil level is not very high there is not much fuel in the oil. What there is will evaporate after you run the bike for a few minutes. If there's a lot of fuel in there, you should change the oil.


The photo is a Pratt and Whitney R-4360 aero engine, 28 cylinders, 71,500cc and 3,000 hp. These were used in the last piston engine airliners, like this Stratocruiser:

When operated in very cold climates the oil would be diluted with Avgas prior to starting as otherwise it would be too thick to let the engine turn over. During the flight the gasoline would evaporate out. This may have had an impact on the reliability of the engines, a few flights started on four engines and finished on three!

Gold star to all, I have bought a new filter and 4t oil. 3 liters of mineral to flush with, and 3 liters helsynt to ride all summer. shaZam! hits the fan sometimes.

Quote from: åsaka on February 09, 2014, 10:47:46 AM
Thanks, I will pour out in a glass jar, then maybe the gasoline appear floating above the oil?
Otherwise, well my expensive oil be discarded!

What a mess, almost explosive, oil mixed gasoline. Luckily I was not driving more than around the block at home. Now the 50 km full speed in afterburner and pan.
Watch out for the fuel tap in prime position

Don't worry about it ride it for a while if you feel any change in the clutch than change it.

Also don't used fuel filters


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