you need the serial number. its the 9 digit number after the 2915 01. the first 2 digits are the year it was made. ie 87041507 was built in 1987.
Its out of gas
It is a 2-cycle 4HP Briggs motor.
Rc12yc
Depending on the model, 3600 - 4000 rpm top no load speed.
Check the engine shroud, and if it is a v-twin, check the OHV valve covers.
official site for Briggs and Stratton Spark Plugs is: http://www.briggsandstratton.com/maint_repair/routine_maintenance/choosing_spark_plugs/ The proper spark plug will depend on the type of 6.5 HP motor that you have. Briggs and Stratton made several different ones and the best way to get the proper plug will be to call an authorized Briggs and Stratton repair shop with the mower make and model numbers.
For a Briggs and Stratton motor 3.5 motor used straight gas and oil in the crank-case, there is no ratio.
Depending on year and model of motor. : You will find the contacts either under the fly wheel or there will be a pick-up on the coil.
Some Brigg's and Stratten motors have an oil level switch. When you go on a slope if it is really steep the oil level switch will think there is no oil in the motor so it will shut off. If you have that steep of lawn your best bet is to get a lawnboy lawnmower because they don't have that problem - they use mixed fuel.
48oz
190cc
what plug size fits a 3.75 briggs and stratton,and a 19.5 briggs engine and what is the gap. thank you