I have a briggs 24 hp twin v intek engine, started smoking last year with only 50 hours, now with a little over 60, it smokes like a steam train and uses 1 qt oil/30 min. Last week it fouled a plug, I talked to a repair guy and he said head gaskets, so i did that, helped, but still smokes when throttle is moved or really bad when mower is engaged. Help!

to much fuel either the needle valve is stuck or the float is bad tear apart the carb acid dip and clean take float submerge in gas for 20 min pull out shake next to ear if you hear liquid inside its bad

Blue smoke means engine worn or too much oil in sump.
Black smoke is caused by too much fuel being sucked into carburettor.
This can be caused by a dirty air filter, choke being left on after engine is started or fault in choke system if automatic choke fitted.

There is no sealer that will resolve a head gasket issue, if that is what you have going on. and, if the head gasket failed remember it is a victim and not the cause, something else in happening.
I suspect that you have a compression related failure, based on the oil consumption and the smoke is probably blow by. This issue requires surgery to diagnose and fix.

if the engine is ran quite a lot evey year the valves muct be adjusted. If not it will cause a head gasket leak which it sounds you have

these are common for doing this ,if you dont want to pull it down and hone the cyl. then i would use a heavier oil say 20w/50and that will probabley solve your problem

THE PROBLEM SOUNDS LIKE THE CARB IS RUNNING TO RICH OR TO MUCH GAS IS BEING PUMPED INTO THE CYLINDER. IS THERE ANY SMOKE AND WHAT COLOR SMOKE

First thing to do is pull your dipstick and check for broken or missing O-ring also as you pull it, look to make certain that it was seated properly and all the way locked. If either condition exists, you will be leaking into the crankcase which will cause your symptoms

18HP vertical Briggs & Stratton vtech twin ohv; can't find oil leak; motor runs great; is leaking onto housing where motor is bolted to; any suggestions where leak may be coming from????????

The white smoke may have been caused by having water in the fuel, or fuel tank [due to condensation or exposure to rain and snow]. It may have been that the mower got tipped for cleaning purposes, blade inspection, etc. and oil from the low lying oil pan got into the piston.

Either way, I recommend installing a brand new spark plug and new gasoline [you can purchase a little gas siphoning hose for a dollar or so at any auto parts store] If you have gasoline left over in a can from last year it is safe to use it in your car as it mixes with lots of new gas, but not in your small mower tank as it is basically outdated fuel.

sounds like bad rings