My Lawn Mower Is Smoking

lawn mower

Is your lawn mower engine running, but giving off white or blue smoke? Discover what might be causing white smoke from the engine and how to set about fixing the issue.

CAUTION:  Always check out the engine and equipment manual prior to starting, operating, or servicing your engine or equipment to prevent personal injury or property damage. See an authorized dealership if you are not sure of any procedure or have extra concerns. Discover all Engine Safety Warnings.

What could be triggering the white/blue smoke from the lawn mower engine?

Blue or white smoke coming from your lawn mower generally shows burning oil, which can be caused by:

  • Overfilling the crankcase with oil
  • Inaccurate oil grades
  • Operating engine at greater than a 15 degree angle
  • Inoperative crankcase breather
  • Crankcase air leak
  • Blown head gasket
  • Used cylinder and/or rings
  • Turning/tilting the engine on its side for storage, oil change or any other reason.

Keep in mind: If the engine needs to be slanted, guarantee the spark plug is dealing with upwards to assist prevent oil from escaping the crankcase.

Other factors for blue or white smoke from engines include reviewing the engine’s oil capacity, an obstruction in the breather tube (situated behind the air filter), harms to the cylinder/piston rings, and more.

Engine oil capacity depends on your particular engine design and can be determined by checking the Oil Recommendation FAQ. You can also find out how to inspect the oil level and change intervals to guarantee the engine is performing at the appropriate oil capacity.

my lawn mower Is smoking

How to Troubleshoot if Lawn Mower Is Smoking

If you want to repair and repair the small engine yourself:

  • Step 1: Are you tilting the engine or using it at more than a 15 degree angle? Tilting your lawn mower or equipment can cause leakages. Right the machine prior to moving forward.
  • Step 2: Checking and altering the oil is an easy troubleshooting strategy for this issue. Inspect to see if the oil is overruning or you’re using the wrong grade/type.
  • Step 3: Check the crankcase for leakages.
  • Step 4: Is the head gasket blown?
  • Step 5: Are the rings and/or cylinder worn?

Once you’ve figured out the concern, you can discover particular small engine repair instructions in the Repair Manual, which is available purchase through their website.

Keep in mind: You can discover and buy the particular engine repair handbook by specific engine designs. You can likewise buy the repair work handbook locally from a Briggs & Stratton Dealer.


Tagir Technical Team
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