If you're finding your spark plugs to be playing up recently, and are spending far too much time re-cranking them, then it's about time you changed those plugs. You may be wondering which plugs to use; what are the right electric spark plugs/spark plug options for me to use for my lawn mower engines?
Since lawnmowers are designed to last the owner many years of usage, it's quite self-explanatory that you'd need to change certain components up to increase the longevity and improve performance rather than stick with poor engine performance. Spark plugs need to be changed up too- after damage incurred via the improper use of your mower, the types of engine work that have been done, the quality of the motor engine, the quality of the engine components (engine components should be of a high quality to increase the lifespan of the mower as a whole), general daily use, and the previous spark plug types used.
There are three giveaway signs that indicate the necessity to change your spark plugs:
There are some key differences and information to note when comparing auto plugs and mower plugs:
One main difference between automobile and lawn mower spark plugs is the size; lawnmower spark plugs' thread size is marginally smaller than automobile spark plugs- but the difference is significant enough to prevent successful substitution of the two plugs.
Many automobile spark plugs' thread sizes range between 14-15 millimetres, while lawnmower spark plugs' thread sizes range between 9-12 millimetres. Hence, their spark plugs simply won't fit in with eachother.
As we touched on thread length earlier, this has a whole explanation for itself- lawnmower spark plugs are generally shorter than automobile ones- why? What does this mean? The difference in shape will essentially result in the spark plugs being unable to fit into the tapered holes for eachother- so always buy the right one for your specific device and model- and ensure you have the equipment necessary at hand.