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My 1985 yamaha xt600 is blowing black smoke

Well my 1985 yamaha xt600 is blowing bits of black smoke in the morning is that bad?

Posted by Anonymous on

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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stormbrewin
  • 426 Answers

SOURCE: running rich and blowing black smoke

Could be a number of different things.Fuel pressure relief valve not working,injector pulse too long,Is the air box lid securely fastened and air cleaner clean.Are there no leaks between the air box and throttle body(intake tube).Have you checked oxy sensor.air flow meter may be also possible.Try squeezing the flexible fuel hose enough to allow the engine to run and see if the engine reacts better if it does you have excessive fuel pressure.

Posted on Nov 20, 2008

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SOURCE: blowing oil and smoke

When overfilled, how long before the level was drained back to normal, or was it? The problem with overfilling, is that the oil will 'foam' and not lubricate properly. This can result in serious engine damage. So, make sure it's at the proper level now, if it is, I believe the engine was damaged due to lack of proper lubrication. Wish I had better news. Good luck.

Posted on Aug 02, 2009

SOURCE: 1985 f250 with a 460 gas motor blows blue/white

Blue --is Oil
White- is Coolant

Bad intake gasket or head basket

Posted on May 04, 2010

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Parked truck this morning no problem go to lunch truck blows black smoke /no power


What make/model/year of truck? Black smoke indicates too much fuel.

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Blue (whity):worn pistons rings.

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You don't mention what that smell is reminiscent of?

You don't mention the colour of the "smoke" and you didn't say whether the engine is petrol or diesel?

You don't mention whether the road behaviour/performance is normal?

White smoke is almost always steam or in the case of a diesel it could be an unburned fuel mist, grey/black is excess fuel and blue or grey/blue is burning oil.

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