Question about 2004 ATK 500 Intimidator

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Spitin oil and smoke

I've been working on a mx 450 I've adopted this winter. When I start it up it blows some blueish smoke for the first minute or so and I have also notice it spitting oil out filler overflow tube. How much of this is normal? Oil doesn't indicate it being too full. Sounds like rings and scoring?

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Oil is too full or scavenge pump is not pumping properly. Look down into the oil fill hole in the frame do you see oil flowing? If the oil is too full or the scavenge pump is not pumping then crankcase pressure is increased to the point where it starts blowing oil out of the vent into the airbox area... I would go with oil being too full. Drain the oil from the frame and engine and add 1 qt, perhaps a HAIR over, but not 1.5qts. 1.5qts is always too much for ours, I barely go over 1 qt. We have about 18 Dales in our group that we ride with, so we are used to seeing this.,,,

Posted on Nov 10, 2008

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1989 1100cc virago sat for 9 months after being winterized so no liquids were in it. added oil, gas and new battery. got it to start and it blew massive blue smoke. then it quit. went for a ride around the...

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