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5/8 inch
what plug size fits a 3.75 briggs and stratton,and a 19.5 briggs engine and what is the gap. thank you
A Briggs & Stratton engine usually costs anywhere from about $170 to $1600. The cost of the engine will depend on its size and its features. A mid-range cost for this type of engine is about $400.
I am afraid not Depending on the size of the shaft on the thing you are putting on it is possible to get a bushing made to increase the size of the shaft. Go to your local machine shop and ask if they can make one.)
On most of those engines it is 1in" But it could also be 7/8"
Unless the type # is off the wall strange, it has a 1" diameter shaft, 1/4" keyway, the end is tapped to thread size 7/16 - 20, and length from mount to tip is 3 and 5/32".
RJ19LM champion.
Most likely 3/4" diameter, though it's possible it's 5/8". Although, I have never even once heard of a 3.5 hp mower with a horizontal shaft.
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.
Champion RC-12YC at 0.030"
This can happen on really steep hills but it could be a number of other reasons. Use the link below to ask Briggs and Stratton directly. It is a lean condition caused by the main jet and is a common problem. EPA (emissions) carbs tend to run lean. Replace with next size larger jet.
Most Briggs and Stratton (B&S) engines of that size can have the spark plug gapped to 0.030" What I truly recommend is that you visit the Briggs and Stratton web site and download the engine owner's manual. You will need the Model Number, Type Number and maybe the Date Code. This information will be used to obtain the appropriate Owner's Manual. You can also obtain the IPL (Illustrated Parts List) for your particular engine. The web site is www.briggsandstratton.com - and you can take a look around for the manuals.