check condition of spark plugs

check condition of spark plugs

     Easy enough to see why just because the color of the spark plug electrodes during combustion, the spark plug electrodes inside the combustion chamber.

1. Dry black, a sign of wasteful fuel 

 

     When dry it is black or sooty sign incomplete combustion. Burning a mixture of fat or too rich. The black color is caused gasoline is not burned out, so stick to the mouth of the spark plug. There are two possible causes of the case, could be due to the setting of gasoline in the carburetor and estrangement improper valve or ignition with problems such as setting the wind is too closed, spuyer worn or too big, even a clogged air filter can also cause burning too rich. So also with the valve setting is too tenuous. Gasoline into the fuel too much so it can not burn out. The solution is usually the motor must be set back not too long when it is in service, setting the motor will be changed and no longer economical. 

2. Brownish, complete combustion 

3. White sign is too dry

     But when the ignition is in trouble, spark plugs so the first concern. Among so many parts of ignition, the most short-life spark plugs are usually aged between 6000 to 7000 miles depending on usage over the performance will go down and must be less than perfect combustion.

     So what a perfect combustion spark plug color? Plug color will look brownish. But do not be too efficient if it is too efficient and the white color of the spark plug so the engine will tend to be hot.  

source: http://willykk.wordpress.com/2011/03/09/cek-kondisi-busi/ 

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