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Cracked block, worn-out rings, hole in a piston, valve-stem seals, and several other less expensive things if you're lucky.
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∙ 16y ago
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Why does your yz490 spit oil from exhaust?
That is the burnt two stroke oil. it is pretty normal
Why does your two stroke spit oil out the exhaust?
Oil in the exhaust is part of the two stroke design but if you have too much, you should check the fuel/oil mixture or the oil injector settings.
What causes oil in the exhaust?
Broke rings on pistons
What causes blue smoke from exhaust?
Burning oil
What causes black soot from exhaust?
burning oil
What causes White smoke from exhaust when im idle?
Piston rings or Rich oil .
What causes white smoke that smells like burnt oil from the exhaust?
Head gasket
What causes a smell of exhaust or burned engine oil from the heater vents of a 2001 Toyota Sienna?
Doesn't matter what type of vehicle, this indicates an exhaust leak and an oil leak. The burnt oil and the exhaust, get pulled into the cowl which is where the air for the interior comes from! Not very healthy...
What causes oil being blown out of exhaust?
Seriously worn piston rings and more than likely a broken oil ring.
What causes backfire from exhaust pipe?
Unburned fuel in the exhaust system causes the backfire from the exhaust pipe.
What causes blue exhaust?
A vehicle that emits blue exhaust is experiencing an oil leak that has seeped past the engine seals and started to burn with the fuel. It indicates either a blown head gasket or an engine oil leak.
What causes black sooty exhaust?
What can cause black sooty exhaust is bad valve guides. When the guides are bad oil leaks into the cylinder when the car isn't running. When the car starts it produces black exhaust.
