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Show CLEAN SPARK PLUGS AID SELF-STARTERS. Now that self-starters have become an important factor In automobile equipment, especially starters of the acetylene typo, of which there are dozens on the market, where two years ago there were only one or two, spocial attention Is required by the spark plugs. It is well known that the effectiveness of the acetyleno starter depends upon the working of the Ignition system. If one of the spark plugB should bo fouled so that It gives only a weak spark, or no spark at all, and It so happened that this spark plug Is in tho cylinder whose piston has stopped on the firing stroke, the gas which has been Introduced into the cylinder by tho starter will not be exploded. Hence the starter will fall to operate. Ite will, therefore, be seen that It Is necessary to always keep the spark plug clean. |