\documentclass[12 pt]{article} \usepackage{graphicx} \title{\textit{Spark plug}}
\begin{document}
\maketitle \textbf{spark plug} : A spark plug is a device for delivering current from an ignitaion system to the combustion chamber of spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark ,while containing combustion pressure whithine the engine.
\includegraphics[width=0.25\textwidth]{sparking} \newline
\underline{Maintenance of spark plug}\newline \newline \textbf{step 1} . Turn off machine and allow the engine to cool the touch , and then disconnet the spark plug wire to prevent accidental starting.\newline \includegraphics[width=0.25\textwidth]{plug1}\newline
\textbf{step 2}. Blow or clean off the area around the plug with compressed air or a brush,making sure the area is clean.\newline \includegraphics[width=0.25\textwidth]{plug2}\newline
\textbf{step 3}. Remove the spark plug with a spark socket and clean any deposits from the plug.\newline \includegraphics[width=0.25\textwidth]{plug3}\newline
\textbf{step 4} . use the wire brush or spray-on-plug cleaner to remove the deposits from plug.\newline
\includegraphics[width=0.25\textwidth]{plug4}\newline
\textbf{step 5} .Check the spark plug gap and adjust if necessary.\newline
\includegraphics[width=0.25\textwidth]{plug5}\newline
\textbf{step 6} .
If the spark plug is in good shape, re-attach. Make sure you don’t over-tighten the plug when replacing it.\newline \includegraphics[width=0.30\textwidth]{plug6}\newline
\textbf{step 7}. Reconnect the spark plug wire and start your machine’s engine.\newline \includegraphics[width=0.25\textwidth]{plug7}
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