<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body><div>Yes, it is a float issue, lower the level, the car is having trouble pulling through the rich spot. This will not effect the top end jetting. Or you can go up 2 numbers on the choke size.</div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757" dir="auto">Sent from my Verizon, Samsung Galaxy smartphone</div></div><div><br></div><div style="font-size:100%;color:#000000"><!-- originalMessage --><div>-------- Original message --------</div><div>From: Bill <ponobill@gmail.com> </div><div>Date: 10/16/16 7:44 AM (GMT-06:00) </div><div>To: D V <explore8@outlook.com> </div><div>Cc: fot@autox.team.net </div><div>Subject: Re: [Fot] Stutter at 4K rpm </div><div><br></div></div>pull your float and give it a shake. Common problem. <div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Oct 15, 2016, at 10:51 PM, D V <<a href="mailto:explore8@outlook.com" class="">explore8@outlook.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class="">Thanks everyone for the replies. I will inspect the pipe to manifold and manifold to head to see if anything is loose or any leaks apparent in the morning.</div>
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<div class="">I actually went down a main jet 145 to 140 and that seemed like it helped some but didn't clear up the issue (which is going leaner; opposite of what Greg said). </div>
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<div class="">It is missing and backfiring when I am full on the gas. I can prevent it by easing into the gas.</div>
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<div class="">I did notice some gas at my air cleaner to velocity stack connection. I wonder if it is a float issue?</div>
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On Oct 15, 2016, at 7:35 PM, Greg Blake <<a href="mailto:gblake58tr3@icloud.com" class="">gblake58tr3@icloud.com</a>> wrote:<br class="">
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<div class="">Don't know if my other email made it to you. Backfires on deceleration can be a lean condition. Have you checked your plugs? Maybe something got "adjusted" with the bump. <br class="">
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On Oct 15, 2016, at 12:27 PM, D V <<a href="mailto:explore8@outlook.com" class="">explore8@outlook.com</a>> wrote:<br class="">
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<div class=""><b class="">From:</b> <<a href="mailto:explore8@outlook.com" class="">explore8@outlook.com</a>><br class="">
<b class="">Date:</b> October 15, 2016 at 10:30:51 AM CDT<br class="">
<b class="">To:</b> <<a href="mailto:fot@autox.team.net" class="">fot@autox.team.net</a>><br class="">
<b class="">Subject:</b> <b class="">Stutter at 4K rpm</b><br class="">
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<div class=""><span class="">Two races ago I went off track and bent my exhaust pipe enough to break the welded joint near the muffler. In the interest of time, I cut the exhaust at the muffler and secured the pipe to the frame.</span><br class="">
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<span class="">At the last race, I noticed the car would backfire at deceleration which I am not surprised but I also noticed a stutter around 4-5k rpm.
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<span class="">At NOLA this weekend it is more pronounced and comes in when shifting hard from 3rd to 4th. After 5k, it clears up and pulls normally.</span><br class="">
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<span class="">It doesn't seem to be affected by turns and more related to full throttle vs easing into the gas.</span><br class="">
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<span class="">Backpressure from the loss of muffler or unrelated issues?</span><br class="">
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<span class="">1300 spitfire with single Weber 40.</span><br class="">
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