<br><font size=2 face="sans-serif">Did you know that OS has a dual plug head that they sell in Japan?</font>
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<br><font size=2 face="sans-serif">It appears from the pictures on these two sites that the 3M140 engine was designed with a head bolt pattern that matches the OS140. Is this correct?</font>
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<br><font size=2 face="sans-serif">Bully has had dual plug heads for years to put on Webra 145s. Funny how things come around. </font>
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<br><font size=2 face="sans-serif">Truth is, it seems to really help. My experience with the Bullys has been good and the OS140 I saw with the dual plugs had an idle much lower than normal (around 1300 rpm).</font>
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<br><font size=2 face="sans-serif">--Lance</font>
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<td><font size=1 face="sans-serif"><b>"Bob" <lomcevak@tin.it></b></font>
<br><font size=1 face="sans-serif">Sent by: discussion-request@nsrca.org</font>
<p><font size=1 face="sans-serif">09/17/2002 12:14 PM</font>
<br><font size=1 face="sans-serif">Please respond to discussion</font>
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<td><font size=1 face="Arial"> </font>
<br><font size=1 face="sans-serif"> To: <discussion@nsrca.org>, "pattern@rcmailinglists. com" <pattern@rcmailinglists.com></font>
<br><font size=1 face="sans-serif"> cc: <lee@piedmontmodels.com></font>
<br><font size=1 face="sans-serif"> Subject: Re: OS 140 RX with Dual Plug Conversion</font></table>
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<br><font size=2><tt>The website of their producer is:<br>
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<br><font size=2><tt>http://www.mintor3m.it/<br>
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<br><font size=2><tt>I've got this engine and I can say it is very good.<br>
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<br><font size=2><tt>See you at the TOC.<br>
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<br><font size=2><tt>Roberto Bracchi<br>
www.modelcompositi.com<br>
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<br><font size=2><tt>----- Original Message -----<br>
From: "Chuck Wagoner" <chuckwagon@charter.net><br>
To: "pattern@rcmailinglists. com" <pattern@rcmailinglists.com>;<br>
"discussion@nsrca. org" <discussion@nsrca.org><br>
Cc: <lee@piedmontmodels.com><br>
Sent: Tuesday, September 17, 2002 6:41 PM<br>
Subject: OS 140 RX with Dual Plug Conversion plus Webra Memories<br>
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<br><font size=2><tt>> Dual plugs<br>
> anyone?http://www.rcaerosport.com/articles/reviews/evolis/crino/e10.htm<br>
(I<br>
> remember my very smooth running dual-plug Merco 60.)<br>
><br>
> Also another 2-stroke memory... the great Webra slide valve carb. Mine<br>
> seemed to give INSTANT RPM up from an all-day idle with my stock single<br>
plug<br>
> Webra black head engine! It had almost zero spool-up or spool-down time to<br>
> or from any level(s) I chose. Blip...blip...blip <happy smile>. Once I<br>
made<br>
> an adaptor and tried the slide valve with a ST blue head. Same dynamics.<br>
> Also gave more HP than the stock ST carb. Just some thoughts.<br>
> Chuck<br>
><br>
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