What kind of spark plug does a Lawn Boy mower take?
MaxPower's 334059 spark plug for Lawn Boy engines replaces Champion CJ14; Autolite 258; NGK BM4A.
Likewise, people ask, what size is a lawn mower spark plug?
Ideally, most automobile spark plugs use a thread size of about 14mm thread why those of lawn mower range between 10 to 12 mm. Because of these differences in thread sizes, they just won't fit into the same hole or the unit in which the plug is to be fit in.
Secondly, are lawn mower spark plugs universal?
Spark plugs aren't universal; you have to make sure that you buy one that fits your mower. ... If you no longer have the manual or the number has rubbed off, you can always remove the plug first and take it to AutoZone with you.
What does a bad spark plug look like lawn mower?
Its center electrode should have a flat top. If its top is rounded, then the spark plug must be replaced. Look for cracks or chips in the spark plug's porcelain sheath as well as pitting on its firing electrode.Slowly pour 20 ounces of SAE 30 motor oil into the fill tube. Lawn Boy calls for a 32:1 gas/oil ratio when using its own brand of two-cycle engine oil. That is equal to 4 ounces of two-cycle engine oil per gallon of gas.A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn't start, a new one may be in order.The letter “E” indicates the reach of the spark plug, that is, the length of the threads. There are two size reaches currently being used in motorcycles and ATVs. “H” indicates a 1/2″ reach, while “E” indicates a 3/4″ reach. The letter “A” indicates some type of special feature.
|BRIGGS & STRATTON GAS ENGINES -- All models except twin cylinder, Vanguard Intek, 19A400-19G400 series
|Replacement Part Type
|Briggs & Stratton Spark Plug Part Number
|Spark Plug Gap
|Extended Life Series® OHV Spark Plug Platinum (Replaces Champion RC12YC)
|696202 5066 (5066D, 5066H)
|Resistor Spark plug - hotter spark (Replaces Champion RC14YC)