<div dir="ltr"><div class="gmail_default" style="font-size:small">​I was using RC and RB SU needles in my ZS 175s, but running too rich according to my wideband O2 sensor so I switched to RH needles and saw better readings. You might have luck with the RB or RC profile. ​</div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 28, 2017 at 9:54 AM, Henry Morrison via Fot <span dir="ltr"><<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




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<p>I think my engine wants more gas than is being supplied by the RH needles.  Anyone used another standard needle to accomplish this?  The carburetors are the H6. 
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<p>Cheers, Henry Morrison<br>
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<p>Sent from <a id="m_752388702582761924LPNoLP" href="http://aka.ms/weboutlook" target="_blank">Outlook</a><br>
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