Fuel In Oil Problem Motorcycle

September 12, 2021 Post a Comment

This should turn off the fuel when the engine is not running. Even just trying to start the motorcycle engine can do damage.

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The fuel bowl can get overfilled it that cylinder is not firing which is unlikely if the bike seems to be running OK.

Fuel in oil problem motorcycle. The most likely reason for fuel in the engine oil is an injector that has stuck open. It doesnt even blow black smoke maybe a little when it first starts but very minimal. There could be several sensors or other problems causing the fuel mixture to get too rich.

Also change the oil. This takes place when engine is off. It just finds its way past the rings and into the oil.

Fuel dilution of the engine oil is a problem that faces many modern combustion engines. I have dumped luke warm oil during. Marc_hanna Super Moderator.

If your gas valve tests good or has now been repaired or replaced and tests good the next area for fuel control is the carburetor float needle. In fact I am not sure if the heavier oils used in motorcycles ever completely warms up during the winter. If your fuel mixture is too rich the combustion chamber wont ignite all of the fuel and this will cause the fuel to run through the piston rings down into the oil pan.

Back in the days on a cold winter day below freezing in order to get oil flowing through the engine sometimes truck drivers would pour some kerosine in the oil to thin it out. I think you need to start be checking the compression because the first an most obvious source is fuel getting past. Until the dumped fuel in the cylinder clears off.

When you turn your engine off there is still significant pressure in the fuel rail if an injector is even. So the number one cause would most likely be leaking fuel injectors. Jump to Latest Follow 1 - 8 of 8 Posts.

Fuel will push itself down into the cylinder of any leaky injector and gradually drip into the oil pan. This causes the lubricant to lose viscosity meaning that the films formed are weaker and less capable of withstanding high loads that can occur at certain points such as the rod bearings and crankshaft areas. When a fuel injector is stuck open the fuel.

Due to pressure on the fuel rail. It is also one of the main reasons why periodic oil. Just add some very thick diesel oil like 15W50 or more and pour a little in the engine to thicken the overall mixture.

Discussion Starter 1 Jun 27 2012. Carlsbad small engine and ask the mower guy shows you in this video by harold what to do about a bad needle and seat and anti back fire solenoid bad fuel so. If so you could have stuck rings and the other thing is are the vacum and fuel lines the right way round.

If the fuel tap has two pipes going to it - a large one and a small one - then its a vacuum tap. Can also fill up a cylinder and cause hydraulic damage. Read the trouble codes with an OBD2 scanner to see if any stored trouble codes could indicate where you should start your troubleshooting.

You say fuel is coming in to the air box under pressure from the carb inlets that tells me the bores are flooded with fuel and is being sent back by compression before valves can close. Just check your oil level and see if its increased. Joined Aug 13 2010 42 Posts.

For the most part a little bit of fuel in the oil is normal. It is a process that occurs roughly 8 times per 1000 rpm for each cylinder and whilst it occurs in every engine it is a factor that contributes a significant amount of wear to the engine. Another effect of fuel leaking into the crankcase is oil dilution.

But in this case you will observe that the car would hard start and rough idle. Fuel and Oil Problems. Although its important to check engine oil level in a regular basis its also very important to keep your motorcycle engine happy by using the correct motor oil and by checking if the oil inside the engine is still in good condition.

More likely causes are some junk in the fuel clogging up the shut off valve or a leak in the float causing it to not shut off the valve when the bowl is full. Modern motorcycle fuel system faults can easily lead to failure of major engine components such as fuel injectors and this can mean that a few pounds saved by attempting a DIY fuel drain will often result in a very expensive repair requirement a few weeks down the road. Strip the tap down and inspect the diaphragm - or buy a rebuild kit for it.

If you really have fuel in there youve thinned the oil out and could conceivably start toasting things like bearings and camshafts. Especially when parked overnight. Drained the oil and it seems to have a lot of fuel in it The bike has been flooding out lately is this the cause of this or do I have bigger problemsSorry to be such a.

The motor seems to run fine its not blowing any white or blue smoke. Also known as crankcase dilution it is a process where fuel is leaked into engine oil when it travels towards the crankcase. After all repairs to your leaking gas valve have been completed.

Especially on short rides when the oil has not reached full operating temperature and this can take a long time when the weather is colder. To check lift the tank and put 23 feet of fuel line on the petcock leading into a container. If fuel is getting past the diaphragm or through a hole in it then it will end up in the sump.

Joined Apr 10 2017 1229 Posts 5 Apr 2 2018. If you see fuel in there after a few hours you need to rebuild the petcock. This removes the lubricating motor oil causing friction which can easily damage soft aluminum parts.

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