Question about 2004 Yamaha YZ 250

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Oil leaks from overflow line on the power valve. What causes this and how do I stop the leaking?

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Mixture is to rich not all the oil is being burnt inside the head when you are driving the bike try turning the air screw in by half a turn then try it again you may have to play with the screw to get it in the right place for you bike

Hope this helps

John

Posted on Apr 05, 2011

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I have ktm sxf250 2008...the radiator gets hot really quick and losing coolant from the drain pipes...what would be the problem....thanks

Posted on Jul 20, 2015

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Posted on Jan 02, 2017

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2003 ford ranger 4.0 2 wd has raw fuel leaking from exhaust


This is usually due to a defective fuel injector. If the injector stays open, once the vehicle is shut off, all the remaining pressure in the fuel system will drain fuel through the injector, fill the cylinder, and overflow through the exhaust valve into the exhaust lines. The downside is that this injector could also be causing fuel to get into the engine oil by leaking around the piston rings. This will greatly reduce the oil's ability to lubricate and increase engine wear immensely. This issue needs repaired ASAP. Have the injectors checked, and any defective ones replaced. Have the oil and oil filter changed as a precaution as well.

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I have a toro z master that has white smoke and oil coming out of muffler. the compression is fine. what can be causing this?


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2001 Jeep Cherokee Classic - 90K miles


First thing you need to do is actually verify exactly what is leaking. A leak that appears to be from under the engine can be caused by a valve cover gasket (anything up top will run down) I have no idea what valve would need replacement but on the valve cover towards the rear, there is a orifice fixture that replaces the pcv valve. they can be cleaned out and re-used by spraying carb cleaner through them and using a thin piece of wire to loosen any crud in there.(remove from cover to do that) Make sure there is vacuum in the line going to it so it is able to work. (clean out line and fitting if no vacuum). Doing the above lessens crankcase pressure and often will stop leaks.
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I have a burnt oil smell in the cabin on occaision...cannot find a leak anywhere


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Have 1999 ford taurus front wheel drive car that transmission leaks.does not always leak but when it does it leaks a lot while driving.fill with oil and will do fine for several weeks without leaking and...


transmission oil expands when it becomes hot so and is equipped with an overflow ...as for it leaking the pan itself is noted for rusting and even a pinhole or many will cause it to leak

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I have a 2000 1200 custom sportster. It leaks oil out of a overflow tube under the seat.It leaks on the rear end when riding or on the grnd when parked. One mech replaced trans seal, still leaked. Another...


if the oil tank is above the crank case, inspect the oil pump check valve. go online and study the check valve's functional purpose and see to it that the vale is operating properly. it should not be an expensive fix.
if you reroute hose be carefull of rear tire annnd what does the oil level in the oil tank sit at when full and after the leak happens after -say a day of riding- a week  

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Oil leaking out of overflow


just check the crankcase filter to make sure it isn't stopped up if it is that will make the crankcase build up pressure and blow the oil out

Jan 24, 2009 | 2004 Yamaha YZ 250 F

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