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Anonymous Posted on Aug 06, 2014

21hp b&s white smoke

Oil coming out by exhaust

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Rick Meckstroth

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  • Posted on May 19, 2016
Rick Meckstroth
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90% chance it's the head gasket. Oil gets past it, sucked into the combustion chamber on the intake stroke. Briggs has a known problem on these one cylinder, overhead cam engines. A new gasket costs $7 and it's not that hard to fix. There are YouTubes that will walk you through the process. Summary, remove tractor hood, top cover of engine, remove head bolts, valve cover. Keep careful track of push rods, which end is which and upper and lower. The lower one on my was white, and don't put it in backwards, easy to do. It won't run if in backwards. Intake valve stays shut. Re-torque head bolts to specification, 18 foot pounds on mine. Don't over torque, its an aluminum block. Re-torque bolts after you run it once to the same spec., gasket will have slightly compressed.

johnsharon56

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  • Posted on Aug 06, 2014
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Drain engine oil an refill to manuel capacity, its easy to overfill this model due to the dipstick tube height

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Dwain Pippen

  • 377 Answers
  • Posted on May 15, 2009

SOURCE: excessive smoke when runing oil in exhaust

Sounds like it could be a blown head gasket betwen the cylinder and valves. The gasket is very thin in that area and is a common problem. Not a recommended fix for a novice. Best taken to a shop..... Dwain

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Anonymous

  • 235 Answers
  • Posted on Apr 10, 2010

SOURCE: smoke coming from the bottem

your belts are slipping on the pully's and yes it would be a good idea to have it serviced at your favorite small engine repair shop...good luck

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Blueish white smoke comeing from exhaust

Hello There

White smoke when first started is normal. If white smoke continues you have an internal coolant leak, i.e., cracked head/blown head gasket.
Black smoke is caused by a rich fuel condition.
Blue smoke is caused by oil consumption.

You need to check your oil cap for yellow/white gunk on the cap if you have this then this is a sign your head gasket is cracked. Check to see if your radiator coolant level is down this is also another sign.

Hope this helps. Please don't forget to rate me.

Many Thanks
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White smoke coming from exhaust,need help

White smoke is condensation from a buildup of water from within the exhaust system - if it was blue smoke then it is burning oil ... let car sit for a few minutes and take the dipstick out - wipe it clean - then re-insert dipstick - take it back out and check level against gauge at bottom of dipstick if you think you may have overfilled the oil
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21 hp B@S engine exhausting blue smoke

sounds like blown head gasket.
does it have a fuel pump, if so is there oil around it (by the brass colored screen)
if so then you have blown head gasket
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HI i have karzima r which is 5 years old. but from past one month it start throwing white smoke from exhaust. this is only in the morning & evening start up. and white smoke only come out when i r

white smoke= lean fuel, dark smoke= rich fuel. white smoke also could mean mean a blown head gasket allowing water to mix with the oil (very bad). Run it for a bit then take out and look at the oil filler pug. if the oil is frothy or bubbly and has the color of hot chocolate there is water in it. Replace head gasket and flush all systems immediately! Pary for the best
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Honda gx620 on golf cart occasionally bogs down & blows enormous cloud of white smoke from exhaust.gas getting in oil also.runs great until this happens

What ussually causes white smoke to come out the exhaust is oil being sucked up in carb. Typical causes are too much oil in crank case or PVC valve. Or really bad piston rings
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White smoke coming out of the exhaust when starting the engine?

Its the problem of oil.The oil is getting burned out. The vehicle is either burning oil or it is moisture in the gas chamber if you notice white smoke from the exhaust. This is a common possibility.but in some cases this white smoke is not due to oil burning.In that case   White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Normally this is a sign of a blown head gasket or cracked head. And  this is not a common problem must be repaired immediately. You must STOP driving this vehicle or you will cause serious engine damage. you will have to get both this possibilities checked.
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My 99, a3 seems to be burning oil at the rate of a litre every 2 months and theres a bit of white smoke coming from the exhaust

2 things here, using oil & white smoke,
1. i would use a product made by seaform called motor tune-up, you can get at napa,autozone or kragen, pour contents in oil and drive normal, this product is real good been using over ten years it will clean all the carbon around the rings & pistons and also clean lifters,sludge in motor, run in for about 3 weeks then change oil stuff costs about $ 9.00
2. White smoke out exhaust is either automatic transmission fluid from transmission or slight head gasket problem
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