Thanks gentleman.<div>
</div><div>I stopped off at my local Autozone and purchased a <span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">BPMR6F</span><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; "> plug.  As you say it is slightly smaller in height and diameter of the insulator as compared to the </span><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">RCJ7Y.  The fit is a bit loose to the plug cap that came with the engine.  Ordered a 5/8' plug cap from RCExtreme to experiment with.  </span></div><div><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">
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</span></div><div><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">Thanks Again.</span></div><div><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">
</span></div><div><span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">Ray</span></div>