Remove fuel line blow air threw to the fuel tank something is clogging it
SOURCE: White Smoke comming out of Briggs and Stratton 21 HP V2 engine.
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it is safe to use it in your car as it mixes with lots of new gas, but not in your small mower tank as it is basically outdated fuel.
SOURCE: Stratton Briggs Stratton Intek V - Twin Engine 21
The oil is contaminated with water. Change oil and filter, if it has one.
SOURCE: 14 hp briggs runs fuel filter dry every 15
Sounds like the tank is not venting. Try leaving the cap a little loose and see if it stays running. If it does, either the vent for the tank or a vented gas cap is plugged
SOURCE: i have a briggs 20 hp intek , it run about 15 or
Believe it or not, I had this same thing happening on our L120 John Deere. Turned out to be a plugged gas cap vent! At first I couldn't believe it but i resolved it with my air compressor. Now I always make sure the vent is clean and have had no problems since.
SOURCE: Briggs and Stratton 20 hp intek runs great idles
Check the vent on the gas tank if it is blocked it will cause a vacuum in the tank thus starving it for fuel
585 views
Usually answered in minutes!
×