Check the needle in the carburator. Could be some problem with the float. Take it apart and and clean everything. A new needle and valve seat kit could be the next step.....
how to Change oil on a Briggs and Stratton 6.75 HP
Good question! I don't find any oil filter or mount for one on my Briggs 15 horse OHV
48 oz
SAE 10w30 Full Synthetic.
Click the link and look up your engine on the accompanying chart.
No you do not put oil in the gas - 4 hp Briggs & Stratton motors are 4 stroke, not 2 stroke in which you do have to add oil to the gas.
1.5 quarts (48 fl oz, 1.42l)
White Outdoor LT2150 with 21HP OHV Briggs & Stratton
ANSWER:?SAE30 oil above 40 degrees F (4 C) and below this temperature use 5W-30
For a Briggs and Stratton motor 3.5 motor used straight gas and oil in the crank-case, there is no ratio.
There is no "gas oil ratio", the 3.5 hp Briggs and Stratton engine is a four-stroke design, oil should NOT be put into the fuel!!!
drain the oil and put in fresh